Brittany Kamai

California Institute of Technology

H-index: 63

North America-United States

About Brittany Kamai

Brittany Kamai, With an exceptional h-index of 63 and a recent h-index of 61 (since 2020), a distinguished researcher at California Institute of Technology, specializes in the field of Physics, astronomy, astrophysics, cosmology, experimental physics.

His recent articles reflect a diverse array of research interests and contributions to the field:

GWTC-2.1: Deep extended catalog of compact binary coalescences observed by LIGO and Virgo during the first half of the third observing run

A joint Fermi-GBM and Swift-BAT analysis of Gravitational-wave candidates from the third Gravitational-wave Observing Run

Search for gravitational-lensing signatures in the full third observing run of the LIGO-Virgo network

GWTC-3: compact binary coalescences observed by LIGO and Virgo during the second part of the third observing run

Population of merging compact binaries inferred using gravitational waves through GWTC-3

Search for gravitational waves associated with fast radio bursts detected by CHIME/FRB during the LIGO–Virgo observing run O3a

Open data from the third observing run of LIGO, Virgo, KAGRA and GEO

Cosmic Explorer: A Submission to the NSF MPSAC ngGW Subcommittee

Brittany Kamai Information

University	California Institute of Technology
Position	___
Citations(all)	47185
Citations(since 2020)	42426
Cited By	20809
hIndex(all)	63
hIndex(since 2020)	61
i10Index(all)	102
i10Index(since 2020)	102
Email	Access Email
University Profile Page	California Institute of Technology

Brittany Kamai Skills & Research Interests

Physics

astronomy

astrophysics

cosmology

experimental physics

Top articles of Brittany Kamai

GWTC-2.1: Deep extended catalog of compact binary coalescences observed by LIGO and Virgo during the first half of the third observing run

Authors

R Abbott,TD Abbott,F Acernese,K Ackley,C Adams,N Adhikari,RX Adhikari,VB Adya,C Affeldt,D Agarwal,M Agathos,K Agatsuma,N Aggarwal,OD Aguiar,L Aiello,A Ain,P Ajith,S Albanesi,A Allocca,PA Altin,A Amato,C Anand,S Anand,A Ananyeva,SB Anderson,WG Anderson,T Andrade,N Andres,T Andrić,SV Angelova,S Ansoldi,JM Antelis,S Antier,S Appert,K Arai,MC Araya,JS Areeda,M Arène,N Arnaud,SM Aronson,KG Arun,Y Asali,G Ashton,M Assiduo,SM Aston,P Astone,F Aubin,C Austin,S Babak,F Badaracco,MKM Bader,C Badger,S Bae,AM Baer,S Bagnasco,Y Bai,J Baird,M Ball,G Ballardin,SW Ballmer,A Balsamo,G Baltus,S Banagiri,D Bankar,JC Barayoga,C Barbieri,BC Barish,D Barker,P Barneo,F Barone,B Barr,L Barsotti,M Barsuglia,D Barta,J Bartlett,MA Barton,I Bartos,R Bassiri,A Basti,M Bawaj,JC Bayley,AC Baylor,M Bazzan,B Bécsy,VM Bedakihale,M Bejger,I Belahcene,V Benedetto,D Beniwal,TF Bennett,JD Bentley,M Benyaala,F Bergamin,BK Berger,S Bernuzzi,CPL Berry,D Bersanetti,A Bertolini,J Betzwieser,D Beveridge,R Bhandare,U Bhardwaj,D Bhattacharjee,S Bhaumik,IA Bilenko,G Billingsley,S Bini,R Birney,O Birnholtz,S Biscans,M Bischi,S Biscoveanu,A Bisht,B Biswas,M Bitossi,M-A Bizouard,JK Blackburn,CD Blair,DG Blair,RM Blair,F Bobba,N Bode,M Boer,G Bogaert,M Boldrini,LD Bonavena,F Bondu,E Bonilla,R Bonnand,P Booker,BA Boom,R Bork,V Boschi,N Bose,S Bose,V Bossilkov,V Boudart,Y Bouffanais,A Bozzi,C Bradaschia,PR Brady,A Bramley,A Branch,M Branchesi,JE Brau,M Breschi,T Briant,JH Briggs,A Brillet,M Brinkmann

Journal

Physical Review D

Published Date

2024/1/5

The second Gravitational-Wave Transient Catalog, GWTC-2, reported on 39 compact binary coalescences observed by the Advanced LIGO and Advanced Virgo detectors between 1 April 2019 15∶ 00 UTC and 1 October 2019 15∶ 00 UTC. Here, we present GWTC-2.1, which reports on a deeper list of candidate events observed over the same period. We analyze the final version of the strain data over this period with improved calibration and better subtraction of excess noise, which has been publicly released. We employ three matched-filter search pipelines for candidate identification, and estimate the probability of astrophysical origin for each candidate event. While GWTC-2 used a false alarm rate threshold of 2 per year, we include in GWTC-2.1, 1201 candidates that pass a false alarm rate threshold of 2 per day. We calculate the source properties of a subset of 44 high-significance candidates that have a …

A joint Fermi-GBM and Swift-BAT analysis of Gravitational-wave candidates from the third Gravitational-wave Observing Run

Authors

C Fletcher,J Wood,R Hamburg,P Veres,CM Hui,E Bissaldi,MS Briggs,E Burns,WH Cleveland,MM Giles,A Goldstein,BA Hristov,D Kocevski,S Lesage,B Mailyan,C Malacaria,S Poolakkil,A von Kienlin,CA Wilson-Hodge,M Crnogorčević,J DeLaunay,A Tohuvavohu,R Caputo,SB Cenko,S Laha,T Parsotan,R Abbott,H Abe,F Acernese,K Ackley,N Adhikari,RX Adhikari,VK Adkins,VB Adya,C Affeldt,D Agarwal,M Agathos,K Agatsuma,N Aggarwal,OD Aguiar,Luca Aiello,A Ain,P Ajith,T Akutsu,S Albanesi,RA Alfaidi,A Allocca,PA Altin,A Amato,C Anand,S Anand,A Ananyeva,SB Anderson,WG Anderson,M Ando,T Andrade,N Andres,M Andrés-Carcasona,T Andríc,SV Angelova,S Ansoldi,JM Antelis,S Antier,T Apostolatos,EZ Appavuravther,S Appert,SK Apple,K Arai,A Araya,MC Araya,JS Areeda,M Arène,N Aritomi,N Arnaud,M Arogeti,SM Aronson,KG Arun,H Asada,Y Asali,G Ashton,Y Aso,M Assiduo,S Melo,SM Aston,P Astone,F Aubin,K AultONeal,C Austin,S Babak,F Badaracco,MKM Bader,C Badger,S Bae,Y Bae,AM Baer,S Bagnasco,Y Bai,J Baird,R Bajpai,T Baka,M Ball,G Ballardin,SW Ballmer,A Balsamo,G Baltus,S Banagiri,B Banerjee,D Bankar,JC Barayoga,C Barbieri,BC Barish,D Barker,P Barneo,F Barone,B Barr,L Barsotti,M Barsuglia,D Barta,J Bartlett,MA Barton,I Bartos,S Basak,R Bassiri,A Basti,M Bawaj,JC Bayley,M Bazzan,BR Becher,B Bécsy,VM Bedakihale,F Beirnaert,M Bejger,I Belahcene,V Benedetto,D Beniwal,MG Benjamin,TF Bennett,JD Bentley,M BenYaala,S Bera,M Berbel,F Bergamin,BK Berger,S Bernuzzi,CPL Berry,D Bersanetti,A Bertolini,J Betzwieser,D Beveridge,R Bhandare

Journal

arXiv preprint arXiv:2308.13666

Published Date

2023/8/25

The detection of GW170817 (Abbott et al. 2017b) coincident with the short gamma-ray burst GRB 170817A (Goldstein et al. 2017; Savchenko et al. 2017) was a groundbreaking discovery for the multimessenger era. Not only was it the first binary neutron star (BNS) merger detected by the gravitational-wave (GW) instruments Advanced LIGO (Aasi et al. 2015) and Advanced Virgo (Acernese et al. 2014), it was also the first, and to date only, GW detection with a confirmed electromagnetic (EM) counterpart. Since then, the search for EM emission from more of these extreme events has been at the forefront of multimessenger astronomy, particularly in the gamma-ray energy band, since GRB 170817A demonstrated that BNS mergers are a progenitor of short gamma-ray bursts (GRBs; Abbott et al. 2017a). GWs have also been observed from the mergers of other compact objects, such as binary black hole (BBH) and …

Search for gravitational-lensing signatures in the full third observing run of the LIGO-Virgo network

Authors

R Abbott,H Abe,F Acernese,K Ackley,S Adhicary,N Adhikari,RX Adhikari,VK Adkins,VB Adya,C Affeldt,D Agarwal,M Agathos,OD Aguiar,L Aiello,A Ain,P Ajith,T Akutsu,S Albanesi,RA Alfaidi,C Alléné,A Allocca,PA Altin,A Amato,S Anand,A Ananyeva,SB Anderson,WG Anderson,M Ando,T Andrade,N Andres,M Andrés-Carcasona,T Andrić,S Ansoldi,JM Antelis,S Antier,T Apostolatos,EZ Appavuravther,S Appert,SK Apple,K Arai,A Araya,MC Araya,JS Areeda,M Arène,N Aritomi,N Arnaud,M Arogeti,SM Aronson,H Asada,G Ashton,Y Aso,M Assiduo,S Melo,SM Aston,P Astone,F Aubin,K AultONeal,S Babak,F Badaracco,C Badger,S Bae,Y Bae,S Bagnasco,Y Bai,JG Baier,J Baird,R Bajpai,T Baka,M Ball,G Ballardin,SW Ballmer,G Baltus,S Banagiri,B Banerjee,D Bankar,JC Barayoga,BC Barish,D Barker,P Barneo,F Barone,B Barr,L Barsotti,M Barsuglia,D Barta,J Bartlett,MA Barton,I Bartos,S Basak,R Bassiri,A Basti,M Bawaj,JC Bayley,M Bazzan,B Bécsy,VM Bedakihale,F Beirnaert,M Bejger,I Belahcene,AS Bell,V Benedetto,D Beniwal,W Benoit,JD Bentley,M BenYaala,S Bera,M Berbel,F Bergamin,BK Berger,S Bernuzzi,M Beroiz,CPL Berry,D Bersanetti,A Bertolini,J Betzwieser,D Beveridge,R Bhandare,AV Bhandari,U Bhardwaj,R Bhatt,D Bhattacharjee,S Bhaumik,A Bianchi,IA Bilenko,M Bilicki,G Billingsley,S Bini,O Birnholtz,S Biscans,M Bischi,S Biscoveanu,A Bisht,B Biswas,M Bitossi,M-A Bizouard,JK Blackburn,CD Blair,DG Blair,RM Blair,F Bobba,N Bode,M Boër,G Bogaert,M Boldrini,GN Bolingbroke,LD Bonavena,R Bondarescu,F Bondu,E Bonilla,R Bonnand,P Booker

Journal

arXiv preprint arXiv:2304.08393

Published Date

2023/4/17

Gravitational lensing by massive objects along the line of sight to the source causes distortions of gravitational wave-signals; such distortions may reveal information about fundamental physics, cosmology and astrophysics. In this work, we have extended the search for lensing signatures to all binary black hole events from the third observing run of the LIGO--Virgo network. We search for repeated signals from strong lensing by 1) performing targeted searches for subthreshold signals, 2) calculating the degree of overlap amongst the intrinsic parameters and sky location of pairs of signals, 3) comparing the similarities of the spectrograms amongst pairs of signals, and 4) performing dual-signal Bayesian analysis that takes into account selection effects and astrophysical knowledge. We also search for distortions to the gravitational waveform caused by 1) frequency-independent phase shifts in strongly lensed images, and 2) frequency-dependent modulation of the amplitude and phase due to point masses. None of these searches yields significant evidence for lensing. Finally, we use the non-detection of gravitational-wave lensing to constrain the lensing rate based on the latest merger-rate estimates and the fraction of dark matter composed of compact objects.

GWTC-3: compact binary coalescences observed by LIGO and Virgo during the second part of the third observing run

Authors

Richard Abbott,TD Abbott,F Acernese,K Ackley,C Adams,N Adhikari,RX Adhikari,VB Adya,C Affeldt,D Agarwal,M Agathos,Kazuhiro Agatsuma,N Aggarwal,OD Aguiar,L Aiello,A Ain,P Ajith,S Akcay,T Akutsu,S Albanesi,A Allocca,PA Altin,A Amato,C Anand,S Anand,A Ananyeva,SB Anderson,WG Anderson,M Ando,T Andrade,N Andres,T Andrić,SV Angelova,S Ansoldi,JM Antelis,S Antier,S Appert,Koji Arai,Koya Arai,Y Arai,S Araki,A Araya,MC Araya,JS Areeda,M Arène,N Aritomi,N Arnaud,M Arogeti,SM Aronson,KG Arun,H Asada,Y Asali,G Ashton,Y Aso,M Assiduo,SM Aston,P Astone,F Aubin,C Austin,S Babak,F Badaracco,MKM Bader,C Badger,S Bae,Y Bae,AM Baer,S Bagnasco,Y Bai,L Baiotti,J Baird,R Bajpai,M Ball,G Ballardin,SW Ballmer,A Balsamo,G Baltus,S Banagiri,D Bankar,JC Barayoga,C Barbieri,BC Barish,D Barker,P Barneo,F Barone,B Barr,L Barsotti,M Barsuglia,D Barta,J Bartlett,MA Barton,I Bartos,R Bassiri,A Basti,M Bawaj,JC Bayley,AC Baylor,M Bazzan,B Bécsy,VM Bedakihale,M Bejger,I Belahcene,V Benedetto,D Beniwal,TF Bennett,JD Bentley,M BenYaala,F Bergamin,BK Berger,S Bernuzzi,CPL Berry,D Bersanetti,A Bertolini,J Betzwieser,D Beveridge,R Bhandare,U Bhardwaj,D Bhattacharjee,S Bhaumik,IA Bilenko,G Billingsley,S Bini,R Birney,O Birnholtz,S Biscans,M Bischi,S Biscoveanu,A Bisht,B Biswas,M Bitossi,M-A Bizouard,JK Blackburn,CD Blair,DG Blair,RM Blair,F Bobba,N Bode,M Boer,G Bogaert,M Boldrini,LD Bonavena,F Bondu,E Bonilla,R Bonnand,P Booker,BA Boom,R Bork,V Boschi,N Bose,S Bose,V Bossilkov

Journal

Physical Review X

Published Date

2023/12/4

The third Gravitational-Wave Transient Catalog (GWTC-3) describes signals detected with Advanced LIGO and Advanced Virgo up to the end of their third observing run. Updating the previous GWTC-2.1, we present candidate gravitational waves from compact binary coalescences during the second half of the third observing run (O3b) between 1 November 2019, 15∶ 00 Coordinated Universal Time (UTC) and 27 March 2020, 17∶ 00 UTC. There are 35 compact binary coalescence candidates identified by at least one of our search algorithms with a probability of astrophysical origin p astro> 0.5. Of these, 18 were previously reported as low-latency public alerts, and 17 are reported here for the first time. Based upon estimates for the component masses, our O3b candidates with p astro> 0.5 are consistent with gravitational-wave signals from binary black holes or neutron-star–black-hole binaries, and we identify …

Population of merging compact binaries inferred using gravitational waves through GWTC-3

Authors

R Abbott,TD Abbott,F Acernese,K Ackley,C Adams,N Adhikari,RX Adhikari,VB Adya,C Affeldt,D Agarwal,M Agathos,K Agatsuma,N Aggarwal,Odylio Denys de Aguiar,L Aiello,A Ain,P Ajith,T Akutsu,PF De Alarcón,S Akcay,S Albanesi,A Allocca,PA Altin,A Amato,C Anand,S Anand,A Ananyeva,SB Anderson,WG Anderson,M Ando,T Andrade,N Andres,T Andrić,SV Angelova,S Ansoldi,JM Antelis,S Antier,F Antonini,S Appert,Koji Arai,Koya Arai,Y Arai,S Araki,A Araya,MC Araya,JS Areeda,M Arène,N Aritomi,N Arnaud,M Arogeti,SM Aronson,KG Arun,H Asada,Y Asali,G Ashton,Y Aso,M Assiduo,SM Aston,P Astone,F Aubin,C Austin,Stanislav Babak,F Badaracco,MKM Bader,C Badger,S Bae,Y Bae,AM Baer,S Bagnasco,Y Bai,L Baiotti,J Baird,R Bajpai,M Ball,G Ballardin,SW Ballmer,A Balsamo,G Baltus,S Banagiri,D Bankar,JC Barayoga,C Barbieri,BC Barish,D Barker,P Barneo,F Barone,B Barr,L Barsotti,M Barsuglia,D Barta,J Bartlett,MA Barton,I Bartos,R Bassiri,A Basti,M Bawaj,JC Bayley,AC Baylor,M Bazzan,B Bécsy,VM Bedakihale,M Bejger,I Belahcene,V Benedetto,D Beniwal,TF Bennett,JD Bentley,M Benyaala,F Bergamin,BK Berger,S Bernuzzi,CPL Berry,D Bersanetti,A Bertolini,J Betzwieser,D Beveridge,R Bhandare,U Bhardwaj,D Bhattacharjee,S Bhaumik,IA Bilenko,G Billingsley,S Bini,R Birney,O Birnholtz,S Biscans,M Bischi,S Biscoveanu,A Bisht,B Biswas,M Bitossi,M-A Bizouard,JK Blackburn,CD Blair,DG Blair,RM Blair,F Bobba,N Bode,M Boer,G Bogaert,M Boldrini,LD Bonavena,François Bondu,E Bonilla,R Bonnand,P Booker,BA Boom,R Bork,V Boschi,N Bose

Journal

Physical Review X

Published Date

2023/3/29

We report on the population properties of compact binary mergers inferred from gravitational-wave observations of these systems during the first three LIGO-Virgo observing runs. The Gravitational-Wave Transient Catalog 3 (GWTC-3) contains signals consistent with three classes of binary mergers: binary black hole, binary neutron star, and neutron star–black hole mergers. We infer the binary neutron star merger rate to be between 10 and 1700 Gpc− 3 yr− 1 and the neutron star–black hole merger rate to be between 7.8 and 140 Gpc− 3 yr− 1, assuming a constant rate density in the comoving frame and taking the union of 90% credible intervals for methods used in this work. We infer the binary black hole merger rate, allowing for evolution with redshift, to be between 17.9 and 44 Gpc− 3 yr− 1 at a fiducial redshift (z= 0.2). The rate of binary black hole mergers is observed to increase with redshift at a rate proportional …

Search for gravitational waves associated with fast radio bursts detected by CHIME/FRB during the LIGO–Virgo observing run O3a

Authors

R Abbott,TD Abbott,F Acernese,K Ackley,C Adams,N Adhikari,RX Adhikari,VB Adya,C Affeldt,D Agarwal,M Agathos,K Agatsuma,N Aggarwal,OD Aguiar,L Aiello,A Ain,P Ajith,T Akutsu,S Albanesi,A Allocca,PA Altin,A Amato,C Anand,S Anand,A Ananyeva,SB Anderson,WG Anderson,M Ando,T Andrade,N Andres,T Andrić,SV Angelova,S Ansoldi,JM Antelis,S Antier,S Appert,Koji Arai,Koya Arai,Y Arai,S Araki,A Araya,MC Araya,JS Areeda,M Arène,N Aritomi,N Arnaud,SM Aronson,KG Arun,H Asada,Y Asali,G Ashton,Y Aso,M Assiduo,SM Aston,P Astone,F Aubin,C Austin,S Babak,F Badaracco,MKM Bader,C Badger,S Bae,Y Bae,AM Baer,S Bagnasco,Y Bai,L Baiotti,J Baird,R Bajpai,M Ball,G Ballardin,SW Ballmer,A Balsamo,G Baltus,S Banagiri,D Bankar,JC Barayoga,C Barbieri,BC Barish,D Barker,P Barneo,F Barone,B Barr,L Barsotti,M Barsuglia,D Barta,J Bartlett,MA Barton,I Bartos,R Bassiri,A Basti,M Bawaj,JC Bayley,AC Baylor,M Bazzan,B Bécsy,VM Bedakihale,M Bejger,I Belahcene,V Benedetto,D Beniwal,TF Bennett,JD Bentley,M Benyaala,F Bergamin,BK Berger,S Bernuzzi,CPL Berry,D Bersanetti,A Bertolini,J Betzwieser,D Beveridge,R Bhandare,U Bhardwaj,D Bhattacharjee,S Bhaumik,IA Bilenko,G Billingsley,S Bini,R Birney,O Birnholtz,S Biscans,M Bischi,S Biscoveanu,A Bisht,B Biswas,M Bitossi,M-A Bizouard,JK Blackburn,CD Blair,DG Blair,RM Blair,F Bobba,N Bode,M Boer,G Bogaert,M Boldrini,LD Bonavena,F Bondu,E Bonilla,R Bonnand,P Booker,BA Boom,R Bork,V Boschi,N Bose,S Bose,V Bossilkov,V Boudart,Y Bouffanais

Journal

The Astrophysical Journal

Published Date

2023/10/1

Fast radio bursts (FRBs) are millisecond duration radio pulses that have been observed out to cosmological distances, several with inferred redshifts greater than unity (Lorimer et al. 2007; Cordes & Chatterjee 2019; Petroff et al. 2019). Although intensely studied for more than a decade, the emission mechanisms and progenitor populations of FRBs are still one of the outstanding questions in astronomy. Some FRBs have been shown to repeat (Amiri et al. 2019a; CHIME/FRB Collaboration et al. 2019; Kumar et al. 2019), and the recent association of an FRB with the Galactic magnetar SGR 1935+ 2154 proves that magnetars can produce FRBs (Bochenek et al. 2020; CHIME/FRB Collaboration et al. 2020). Alternative progenitors and mechanisms to produce nonrepeating FRBs are still credible and have so far not been ruled out (Zhang 2020a). Data currently suggest that both repeating and nonrepeating classes of …

Open data from the third observing run of LIGO, Virgo, KAGRA and GEO

Authors

R Abbott,H Abe,F Acernese,K Ackley,S Adhicary,N Adhikari,RX Adhikari,VK Adkins,VB Adya,C Affeldt,D Agarwal,M Agathos,OD Aguiar,L Aiello,A Ain,P Ajith,T Akutsu,S Albanesi,RA Alfaidi,A Al-Jodah,C Alléné,A Allocca,M Almualla,PA Altin,A Amato,L Amez-Droz,A Amorosi,S Anand,A Ananyeva,R Andersen,SB Anderson,WG Anderson,M Andia,M Ando,T Andrade,N Andres,M Andrés-Carcasona,T Andrić,S Ansoldi,JM Antelis,S Antier,M Aoumi,T Apostolatos,EZ Appavuravther,S Appert,SK Apple,K Arai,A Araya,MC Araya,JS Areeda,M Arène,N Aritomi,N Arnaud,M Arogeti,SM Aronson,KG Arun,H Asada,G Ashton,Y Aso,M Assiduo,Sad Melo,SM Aston,P Astone,F Aubin,K AultONeal,S Babak,A Badalyan,F Badaracco,C Badger,S Bae,S Bagnasco,Y Bai,JG Baier,L Baiotti,J Baird,R Bajpai,T Baka,M Ball,G Ballardin,SW Ballmer,G Baltus,S Banagiri,B Banerjee,D Bankar,P Baral,JC Barayoga,J Barber,BC Barish,D Barker,P Barneo,F Barone,B Barr,L Barsotti,M Barsuglia,D Barta,SD Barthelmy,MA Barton,I Bartos,S Basak,A Basalaev,R Bassiri,A Basti,M Bawaj,JC Bayley,AC Baylor,M Bazzan,B Bécsy,VM Bedakihale,Freija Beirnaert,M Bejger,AS Bell,V Benedetto,D Beniwal,W Benoit,JD Bentley,M Ben Yaala,S Bera,M Berbel,F Bergamin,BK Berger,S Bernuzzi,M Beroiz,CPL Berry,D Bersanetti,A Bertolini,J Betzwieser,D Beveridge,N Bevins,R Bhandare,AV Bhandari,U Bhardwaj,R Bhatt,D Bhattacharjee,S Bhaumik,A Bianchi,IA Bilenko,M Bilicki,G Billingsley,S Bini,O Birnholtz,S Biscans,M Bischi,S Biscoveanu,A Bisht,B Biswas,M Bitossi,M-A Bizouard,JK Blackburn,CD Blair,DG Blair

Journal

arXiv preprint arXiv:2302.03676

Published Date

2023/2/7

The global network of gravitational-wave observatories now includes five detectors, namely LIGO Hanford, LIGO Livingston, Virgo, KAGRA, and GEO 600. These detectors collected data during their third observing run, O3, composed of three phases: O3a starting in April of 2019 and lasting six months, O3b starting in November of 2019 and lasting five months, and O3GK starting in April of 2020 and lasting 2 weeks. In this paper we describe these data and various other science products that can be freely accessed through the Gravitational Wave Open Science Center at https://gwosc.org. The main dataset, consisting of the gravitational-wave strain time series that contains the astrophysical signals, is released together with supporting data useful for their analysis and documentation, tutorials, as well as analysis software packages.

Cosmic Explorer: A Submission to the NSF MPSAC ngGW Subcommittee

Authors

Matthew Evans,Alessandra Corsi,Chaitanya Afle,Alena Ananyeva,KG Arun,Stefan Ballmer,Ananya Bandopadhyay,Lisa Barsotti,Masha Baryakhtar,Edo Berger,Emanuele Berti,Sylvia Biscoveanu,Ssohrab Borhanian,Floor Broekgaarden,Duncan A Brown,Craig Cahillane,Lorna Campbell,Hsin-Yu Chen,Kathryne J Daniel,Arnab Dhani,Jennifer C Driggers,Anamaria Effler,Robert Eisenstein,Stephen Fairhurst,Jon Feicht,Peter Fritschel,Paul Fulda,Ish Gupta,Evan D Hall,Giles Hammond,Otto A Hannuksela,Hannah Hansen,Carl-Johan Haster,Keisi Kacanja,Brittany Kamai,Rahul Kashyap,Joey Shapiro Key,Sanika Khadkikar,Antonios Kontos,Kevin Kuns,Michael Landry,Philippe Landry,Brian Lantz,Tjonnie GF Li,Geoffrey Lovelace,Vuk Mandic,Georgia L Mansell,Denys Martynov,Lee McCuller,Andrew L Miller,Alexander Harvey Nitz,Benjamin J Owen,Cristiano Palomba,Jocelyn Read,Hemantakumar Phurailatpam,Sanjay Reddy,Jonathan Richardson,Jameson Rollins,Joseph D Romano,Bangalore S Sathyaprakash,Robert Schofield,David H Shoemaker,Daniel Sigg,Divya Singh,Bram Slagmolen,Piper Sledge,Joshua Smith,Marcelle Soares-Santos,Amber Strunk,Ling Sun,David Tanner,Lieke AC van Son,Salvatore Vitale,Benno Willke,Hiro Yamamoto,Michael Zucker

Journal

arXiv preprint arXiv:2306.13745

Published Date

2023/6/23

Gravitational-wave astronomy has revolutionized humanity's view of the universe, a revolution driven by observations that no other field can make. This white paper describes an observatory that builds on decades of investment by the National Science Foundation and that will drive discovery for decades to come: Cosmic Explorer. Major discoveries in astronomy are driven by three related improvements: better sensitivity, higher precision, and opening new observational windows. Cosmic Explorer promises all three and will deliver an order-of-magnitude greater sensitivity than LIGO. Cosmic Explorer will push the gravitational-wave frontier to almost the edge of the observable universe using technologies that have been proven by LIGO during its development. With the unprecedented sensitivity that only a new facility can deliver, Cosmic Explorer will make discoveries that cannot yet be anticipated, especially since gravitational waves are both synergistic with electromagnetic observations and can reach into regions of the universe that electromagnetic observations cannot explore. With Cosmic Explorer, scientists can use the universe as a laboratory to test the laws of physics and study the nature of matter. Cosmic Explorer allows the United States to continue its leading role in gravitational-wave science and the international network of next-generation observatories. With its extraordinary discovery potential, Cosmic Explorer will deliver revolutionary observations across astronomy, physics, and cosmology including: Black Holes and Neutron Stars Throughout Cosmic Time, Multi-Messenger Astrophysics and Dynamics of Dense Matter, New Probes …

Constraints on the cosmic expansion history from GWTC-3

Authors

R Abbott,H Abe,F Acernese,K Ackley,N Adhikari,RX Adhikari,VK Adkins,VB Adya,C Affeldt,D Agarwal,M Agathos,K Agatsuma,N Aggarwal,Odylio Denys de Aguiar,L Aiello,A Ain,P Ajith,T Akutsu,S Albanesi,RA Alfaidi,A Allocca,PA Altin,A Amato,C Anand,S Anand,A Ananyeva,SB Anderson,WG Anderson,M Ando,T Andrade,N Andres,M Andrés-Carcasona,T Andric,SV Angelova,S Ansoldi,JM Antelis,S Antier,T Apostolatos,EZ Appavuravther,S Appert,SK Apple,K Arai,A Araya,MC Araya,JS Areeda,M Arène,N Aritomi,N Arnaud,M Arogeti,SM Aronson,KG Arun,H Asada,Y Asali,G Ashton,Y Aso,M Assiduo,S Assis De Souza Melo,SM Aston,P Astone,F Aubin,K AultONeal,C Austin,S Babak,F Badaracco,MKM Bader,C Badger,S Bae,Y Bae,AM Baer,S Bagnasco,Y Bai,J Baird,R Bajpai,T Baka,M Ball,G Ballardin,SW Ballmer,A Balsamo,G Baltus,S Banagiri,B Banerjee,D Bankar,JC Barayoga,C Barbieri,R Barbieri,BC Barish,D Barker,P Barneo,F Barone,B Barr,L Barsotti,M Barsuglia,D Barta,J Bartlett,MA Barton,I Bartos,S Basak,R Bassiri,A Basti,M Bawaj,JC Bayley,M Bazzan,BR Becher,B Bécsy,VM Bedakihale,F Beirnaert,M Bejger,I Belahcene,V Benedetto,D Beniwal,MG Benjamin,TF Bennett,JD Bentley,M BenYaala,S Bera,M Berbel,F Bergamin,BK Berger,S Bernuzzi,CPL Berry,D Bersanetti,A Bertolini,J Betzwieser,D Beveridge,R Bhandare,AV Bhandari,U Bhardwaj,R Bhatt,D Bhattacharjee,S Bhaumik,A Bianchi,IA Bilenko,G Billingsley,M Bilicki,S Bini,R Birney,O Birnholtz,S Biscans,M Bischi,S Biscoveanu,A Bisht,B Biswas,M Bitossi,MA Bizouard,JK Blackburn,CD Blair,DG Blair,RM Blair,F Bobba,N Bode

Journal

Astrophysical Journal

Published Date

2023/6/1

The discovery of a gravitational wave (GW) signal from a binary neutron star (BNS) merger (Abbott et al. 2017a) and the kilonova emission from its remnant (Coulter et al. 2017; Abbott et al. 2017b) provided the first GW standard siren measurement of the cosmic expansion history (Abbott et al. 2017c). As pointed out by Schutz (1986), the GW signal from a compact binary coalescence directly measures the luminosity distance to the source without any additional distance calibrator, earning these sources the name “standard sirens”(Holz & Hughes 2005). Measuring the cosmic expansion as a function of the cosmological redshift is one of the key avenues with which to explore the constituents of the universe, along with the other canonical probes such as the cosmic microwave background (CMB; Spergel et al. 2003, 2007; Komatsu et al. 2011; Ade et al. 2014, 2016; Aghanim et al. 2020), baryon acoustic oscillations …

Narrowband searches for continuous and long-duration transient gravitational waves from known pulsars in the LIGO-Virgo third observing run

Authors

R Abbott,TD Abbott,F Acernese,K Ackley,Cea Adams,N Adhikari,RX Adhikari,VB Adya,C Affeldt,D Agarwal,M Agathos,K Agatsuma,N Aggarwal,OD Aguiar,L Aiello,A Ain,P Ajith,T Akutsu,S Albanesi,A Allocca,PA Altin,A Amato,C Anand,S Anand,A Ananyeva,SB Anderson,WG Anderson,M Ando,T Andrade,N Andres,T Andrić,SV Angelova,S Ansoldi,JM Antelis,S Antier,S Appert,Koji Arai,Koya Arai,Y Arai,S Araki,A Araya,MC Araya,JS Areeda,M Arène,N Aritomi,N Arnaud,SM Aronson,KG Arun,H Asada,Y Asali,G Ashton,Y Aso,M Assiduo,SM Aston,P Astone,F Aubin,C Austin,S Babak,F Badaracco,MKM Bader,C Badger,S Bae,Y Bae,AM Baer,S Bagnasco,Y Bai,M Bailes,L Baiotti,J Baird,R Bajpai,M Ball,G Ballardin,SW Ballmer,A Balsamo,G Baltus,S Banagiri,D Bankar,JC Barayoga,C Barbieri,BC Barish,D Barker,P Barneo,F Barone,B Barr,L Barsotti,M Barsuglia,D Barta,J Bartlett,MA Barton,I Bartos,R Bassiri,A Basti,M Bawaj,JC Bayley,AC Baylor,M Bazzan,B Bécsy,VM Bedakihale,M Bejger,I Belahcene,V Benedetto,D Beniwal,TF Bennett,JD Bentley,M Benyaala,F Bergamin,BK Berger,S Bernuzzi,D Bersanetti,A Bertolini,J Betzwieser,D Beveridge,R Bhandare,U Bhardwaj,D Bhattacharjee,S Bhaumik,IA Bilenko,G Billingsley,S Bini,R Birney,O Birnholtz,S Biscans,M Bischi,S Biscoveanu,A Bisht,B Biswas,M Bitossi,M-A Bizouard,JK Blackburn,CD Blair,DG Blair,RM Blair,F Bobba,N Bode,M Boer,G Bogaert,M Boldrini,LD Bonavena,F Bondu,E Bonilla,R Bonnand,P Booker,BA Boom,R Bork,V Boschi,N Bose,S Bose,V Bossilkov,V Boudart,Y Bouffanais

Journal

The Astrophysical Journal

Published Date

2022/6/1

Continuous gravitational waves (CWs) are quasi-monochromatic signals expected to be ever-present in the data of gravitational-wave (GW) detectors such as Advanced LIGO (Aasi et al. 2015a) and Advanced Virgo (Acernese et al. 2015). While the observation of transient GWs from compact binary coalescences has become nearly commonplace (Abbott et al. 2021a), CWs have yet to be detected as of the third observing run (O3). One of the most enticing and commonly sought after sources of CWs is a rapidly spinning, asymmetric neutron star (NS); see Sieniawska & Bejger (2019) and Haskell &

Search for intermediate-mass black hole binaries in the third observing run of Advanced LIGO and Advanced Virgo

Authors

Rich Abbott,Thomas D Abbott,Fausto Acernese,Kendall Ackley,Carl Adams,Naresh Adhikari,Rana X Adhikari,Vaishali B Adya,Christoph Affeldt,Deepali Agarwal,Michalis Agathos,Kazuhiro Agatsuma,Nancy Aggarwal,Odylio D Aguiar,Lorenzo Aiello,Anirban Ain,P Ajith,Tomotada Akutsu,Simone Albanesi,Annalisa Allocca,Paul A Altin,Alex Amato,Chandana Anand,Shreya Anand,Alena Ananyeva,Stuart B Anderson,Warren G Anderson,Masaki Ando,Tomas Andrade,Nicolas Andres,Tomislav Andrić,Svetoslava V Angelova,Stefano Ansoldi,JM Antelis,Sarah Antier,Stephen Appert,Koji Arai,Y Arai,S Araki,A Araya,MC Araya,JS Areeda,M Arène,N Aritomi,N Arnaud,SM Aronson,KG Arun,H Asada,Y Asali,G Ashton,Y Aso,M Assiduo,SM Aston,P Astone,F Aubin,C Austin,S Babak,F Badaracco,MKM Bader,C Badger,S Bae,Y Bae,AM Baer,S Bagnasco,Y Bai,L Baiotti,J Baird,R Bajpai,M Ball,G Ballardin,SW Ballmer,A Balsamo,G Baltus,S Banagiri,D Bankar,JC Barayoga,C Barbieri,BC Barish,D Barker,P Barneo,F Barone,B Barr,L Barsotti,M Barsuglia,D Barta,J Bartlett,MA Barton,I Bartos,R Bassiri,A Basti,M Bawaj,JC Bayley,AC Baylor,M Bazzan,B Bécsy,VM Bedakihale,M Bejger,I Belahcene,V Benedetto,D Beniwal,TF Bennett,JD Bentley,M Benyaala,F Bergamin,BK Berger,S Bernuzzi,CPL Berry,D Bersanetti,A Bertolini,J Betzwieser,D Beveridge,R Bhandare,U Bhardwaj,D Bhattacharjee,S Bhaumik,IA Bilenko,G Billingsley,S Bini,R Birney,O Birnholtz,S Biscans,M Bischi,S Biscoveanu,A Bisht,B Biswas,M Bitossi,M-A Bizouard,JK Blackburn,CD Blair,DG Blair,RM Blair,F Bobba,N Bode,M Boer,G Bogaert,M Boldrini,LD Bonavena,F Bondu,E Bonilla,R Bonnand,P Booker,BA Boom,R Bork,V Boschi,N Bose,S Bose,V Bossilkov,V Boudart,Y Bouffanais,A Bozzi

Journal

Astronomy & astrophysics

Published Date

2022/3/1

Intermediate-mass black holes (IMBHs) span the approximate mass range 100−105 M⊙, between black holes (BHs) that formed by stellar collapse and the supermassive BHs at the centers of galaxies. Mergers of IMBH binaries are the most energetic gravitational-wave sources accessible by the terrestrial detector network. Searches of the first two observing runs of Advanced LIGO and Advanced Virgo did not yield any significant IMBH binary signals. In the third observing run (O3), the increased network sensitivity enabled the detection of GW190521, a signal consistent with a binary merger of mass ∼150 M⊙ providing direct evidence of IMBH formation. Here, we report on a dedicated search of O3 data for further IMBH binary mergers, combining both modeled (matched filter) and model-independent search methods. We find some marginal candidates, but none are sufficiently significant to indicate detection of …

Search for gravitational waves from Scorpius X-1 with a hidden Markov model in O3 LIGO data

Authors

R Abbott,H Abe,F Acernese,K Ackley,N Adhikari,RX Adhikari,VK Adkins,VB Adya,C Affeldt,D Agarwal,M Agathos,K Agatsuma,N Aggarwal,Odylio Denys de Aguiar,Lorenzo Aiello,A Ain,P Ajith,T Akutsu,S Albanesi,RA Alfaidi,A Allocca,PA Altin,A Amato,C Anand,S Anand,A Ananyeva,SB Anderson,WG Anderson,M Ando,T Andrade,N Andres,M Andrés-Carcasona,T Andrić,SV Angelova,S Ansoldi,JM Antelis,S Antier,T Apostolatos,EZ Appavuravther,S Appert,SK Apple,K Arai,A Araya,MC Araya,JS Areeda,M Arène,N Aritomi,N Arnaud,M Arogeti,SM Aronson,H Asada,Y Asali,G Ashton,Y Aso,M Assiduo,S Assis de Souza Melo,SM Aston,P Astone,F Aubin,K Aultoneal,C Austin,S Babak,F Badaracco,MKM Bader,C Badger,S Bae,Y Bae,AM Baer,S Bagnasco,Y Bai,J Baird,R Bajpai,T Baka,M Ball,G Ballardin,SW Ballmer,A Balsamo,G Baltus,S Banagiri,B Banerjee,D Bankar,JC Barayoga,C Barbieri,BC Barish,D Barker,P Barneo,F Barone,B Barr,L Barsotti,M Barsuglia,D Barta,J Bartlett,MA Barton,I Bartos,S Basak,R Bassiri,A Basti,M Bawaj,JC Bayley,M Bazzan,BR Becher,B Bécsy,VM Bedakihale,Freija Beirnaert,M Bejger,I Belahcene,V Benedetto,D Beniwal,MG Benjamin,TF Bennett,JD Bentley,M Benyaala,S Bera,M Berbel,F Bergamin,BK Berger,S Bernuzzi,D Bersanetti,A Bertolini,J Betzwieser,D Beveridge,R Bhandare,AV Bhandari,U Bhardwaj,R Bhatt,D Bhattacharjee,S Bhaumik,A Bianchi,IA Bilenko,G Billingsley,S Bini,R Birney,O Birnholtz,S Biscans,M Bischi,S Biscoveanu,A Bisht,B Biswas,M Bitossi,M-A Bizouard,JK Blackburn,CD Blair,DG Blair,RM Blair,F Bobba,N Bode,M Boër,G Bogaert,M Boldrini,GN Bolingbroke

Journal

Physical Review D

Published Date

2022/9/21

Results are presented for a semicoherent search for continuous gravitational waves from the low-mass x-ray binary Scorpius X-1, using a hidden Markov model (HMM) to allow for spin wandering. This search improves on previous HMM-based searches of Laser Interferometer Gravitational-Wave Observatory data by including the orbital period in the search template grid, and by analyzing data from the latest (third) observing run. In the frequency range searched, from 60 to 500 Hz, we find no evidence of gravitational radiation. This is the most sensitive search for Scorpius X-1 using a HMM to date. For the most sensitive subband, starting at 256.06 Hz, we report an upper limit on gravitational wave strain (at 95% confidence) of h 0 95%= 6.16× 10− 26, assuming the orbital inclination angle takes its electromagnetically restricted value ι= 4 4. The upper limits on gravitational wave strain reported here are on average a …

All-sky search for gravitational wave emission from scalar boson clouds around spinning black holes in LIGO O3 data

Authors

R Abbott,H Abe,F Acernese,K Ackley,N Adhikari,RX Adhikari,VK Adkins,VB Adya,C Affeldt,D Agarwal,M Agathos,K Agatsuma,N Aggarwal,OD Aguiar,L Aiello,A Ain,P Ajith,T Akutsu,S Albanesi,RA Alfaidi,A Allocca,PA Altin,A Amato,C Anand,S Anand,A Ananyeva,SB Anderson,WG Anderson,M Ando,T Andrade,N Andres,M Andrés-Carcasona,T Andrić,SV Angelova,S Ansoldi,JM Antelis,S Antier,T Apostolatos,EZ Appavuravther,S Appert,SK Apple,Koji Arai,A Araya,MC Araya,JS Areeda,M Arène,N Aritomi,N Arnaud,M Arogeti,SM Aronson,KG Arun,H Asada,Y Asali,G Ashton,Y Aso,M Assiduo,S Assis de Souza Melo,SM Aston,P Astone,F Aubin,K AultONeal,C Austin,S Babak,F Badaracco,MKM Bader,C Badger,S Bae,Y Bae,AM Baer,S Bagnasco,Y Bai,J Baird,R Bajpai,T Baka,M Ball,G Ballardin,SW Ballmer,A Balsamo,G Baltus,S Banagiri,B Banerjee,D Bankar,JC Barayoga,C Barbieri,BC Barish,D Barker,P Barneo,F Barone,B Barr,L Barsotti,M Barsuglia,D Barta,J Bartlett,MA Barton,I Bartos,S Basak,R Bassiri,A Basti,M Bawaj,JC Bayley,M Bazzan,BR Becher,B Bécsy,VM Bedakihale,F Beirnaert,M Bejger,I Belahcene,V Benedetto,D Beniwal,MG Benjamin,TF Bennett,JD Bentley,M BenYaala,S Bera,M Berbel,F Bergamin,BK Berger,S Bernuzzi,D Bersanetti,A Bertolini,J Betzwieser,D Beveridge,R Bhandare,AV Bhandari,U Bhardwaj,R Bhatt,D Bhattacharjee,S Bhaumik,A Bianchi,IA Bilenko,G Billingsley,S Bini,R Birney,O Birnholtz,S Biscans,M Bischi,S Biscoveanu,A Bisht,B Biswas,M Bitossi,M-A Bizouard,JK Blackburn,CD Blair,DG Blair,RM Blair,F Bobba,N Bode,M Boër,G Bogaert,M Boldrini

Journal

Physical Review D

Published Date

2022/5/9

This paper describes the first all-sky search for long-duration, quasimonochromatic gravitational-wave signals emitted by ultralight scalar boson clouds around spinning black holes using data from the third observing run of Advanced LIGO. We analyze the frequency range from 20 to 610 Hz, over a small frequency derivative range around zero, and use multiple frequency resolutions to be robust towards possible signal frequency wanderings. Outliers from this search are followed up using two different methods, one more suitable for nearly monochromatic signals, and the other more robust towards frequency fluctuations. We do not find any evidence for such signals and set upper limits on the signal strain amplitude, the most stringent being≈ 10− 25 at around 130 Hz. We interpret these upper limits as both an “exclusion region” in the boson mass/black hole mass plane and the maximum detectable distance for a …

Search for continuous gravitational waves from 20 accreting millisecond x-ray pulsars in O3 LIGO data

Authors

Robert Abbott,TD Abbott,Fausto Acernese,K Ackley,C Adams,N Adhikari,RX Adhikari,VB Adya,C Affeldt,D Agarwal,M Agathos,K Agatsuma,N Aggarwal,Odylio Denys de Aguiar,L Aiello,A Ain,T Akutsu,S Albanesi,A Allocca,PA Altin,A Amato,C Anand,S Anand,A Ananyeva,SB Anderson,WG Anderson,M Ando,T Andrade,N Andres,T Andrić,SV Angelova,S Ansoldi,JM Antelis,S Antier,S Appert,Koji Arai,Koya Arai,Y Arai,S Araki,A Araya,MC Araya,JS Areeda,M Arène,N Aritomi,N Arnaud,SM Aronson,KG Arun,H Asada,Y Asali,G Ashton,Y Aso,M Assiduo,SM Aston,P Astone,F Aubin,C Austin,S Babak,F Badaracco,MKM Bader,C Badger,S Bae,Y Bae,AM Baer,S Bagnasco,Y Bai,L Baiotti,J Baird,R Bajpai,M Ball,G Ballardin,SW Ballmer,A Balsamo,G Baltus,S Banagiri,D Bankar,JC Barayoga,C Barbieri,BC Barish,D Barker,P Barneo,F Barone,B Barr,L Barsotti,M Barsuglia,D Barta,J Bartlett,MA Barton,I Bartos,R Bassiri,A Basti,M Bawaj,JC Bayley,AC Baylor,M Bazzan,B Bécsy,VM Bedakihale,M Bejger,I Belahcene,V Benedetto,D Beniwal,TF Bennett,JD Bentley,M BenYaala,F Bergamin,BK Berger,S Bernuzzi,D Bersanetti,A Bertolini,J Betzwieser,D Beveridge,R Bhandare,U Bhardwaj,D Bhattacharjee,S Bhaumik,IA Bilenko,G Billingsley,S Bini,R Birney,O Birnholtz,S Biscans,M Bischi,S Biscoveanu,A Bisht,B Biswas,M Bitossi,M-A Bizouard,JK Blackburn,CD Blair,DG Blair,RM Blair,F Bobba,N Bode,M Boer,G Bogaert,M Boldrini,LD Bonavena,F Bondu,E Bonilla,R Bonnand,P Booker,BA Boom,R Bork,V Boschi,N Bose,S Bose,V Bossilkov,V Boudart,Y Bouffanais,A Bozzi,C Bradaschia

Journal

Physical Review D

Published Date

2022/1/19

Results are presented of searches for continuous gravitational waves from 20 accreting millisecond x-ray pulsars with accurately measured spin frequencies and orbital parameters, using data from the third observing run of the Advanced LIGO and Advanced Virgo detectors. The search algorithm uses a hidden Markov model, where the transition probabilities allow the frequency to wander according to an unbiased random walk, while the J-statistic maximum-likelihood matched filter tracks the binary orbital phase. Three narrow subbands are searched for each target, centered on harmonics of the measured spin frequency. The search yields 16 candidates, consistent with a false alarm probability of 30% per subband and target searched. These candidates, along with one candidate from an additional target-of-opportunity search done for SAX J 1808.4− 3658, which was in outburst during one month of the observing …

Search for continuous gravitational wave emission from the Milky Way center in O3 LIGO-Virgo data

Authors

R Abbott,H Abe,F Acernese,K Ackley,N Adhikari,RX Adhikari,VK Adkins,VB Adya,C Affeldt,D Agarwal,M Agathos,K Agatsuma,N Aggarwal,OD Aguiar,Lorenzo Aiello,A Ain,P Ajith,T Akutsu,S Albanesi,RA Alfaidi,A Allocca,PA Altin,A Amato,C Anand,S Anand,A Ananyeva,SB Anderson,WG Anderson,M Ando,T Andrade,N Andres,M Andrés-Carcasona,T Andrić,SV Angelova,S Ansoldi,JM Antelis,S Antier,T Apostolatos,EZ Appavuravther,S Appert,SK Apple,K Arai,A Araya,MC Araya,JS Areeda,M Arène,N Aritomi,N Arnaud,M Arogeti,SM Aronson,KG Arun,H Asada,Y Asali,G Ashton,Y Aso,M Assiduo,S Assis de Souza Melo,SM Aston,P Astone,F Aubin,K AultONeal,C Austin,S Babak,F Badaracco,MKM Bader,C Badger,S Bae,Y Bae,AM Baer,S Bagnasco,Yefei Bai,J Baird,R Bajpai,T Baka,M Ball,G Ballardin,SW Ballmer,A Balsamo,G Baltus,S Banagiri,B Banerjee,D Bankar,JC Barayoga,C Barbieri,BC Barish,D Barker,P Barneo,F Barone,B Barr,L Barsotti,M Barsuglia,D Barta,J Bartlett,MA Barton,I Bartos,S Basak,R Bassiri,A Basti,M Bawaj,JC Bayley,M Bazzan,BR Becher,B Bécsy,VM Bedakihale,F Beirnaert,M Bejger,I Belahcene,V Benedetto,D Beniwal,MG Benjamin,TF Bennett,JD Bentley,M BenYaala,S Bera,M Berbel,F Bergamin,BK Berger,S Bernuzzi,D Bersanetti,A Bertolini,J Betzwieser,D Beveridge,R Bhandare,AV Bhandari,U Bhardwaj,R Bhatt,D Bhattacharjee,S Bhaumik,A Bianchi,IA Bilenko,G Billingsley,S Bini,R Birney,O Birnholtz,S Biscans,M Bischi,S Biscoveanu,A Bisht,B Biswas,M Bitossi,M-A Bizouard,JK Blackburn,CD Blair,DG Blair,RM Blair,F Bobba,N Bode,M Boër,G Bogaert,M Boldrini

Journal

Physical Review D

Published Date

2022/8/9

We present a directed search for continuous gravitational wave (CW) signals emitted by spinning neutron stars located in the inner parsecs of the Galactic Center (GC). Compelling evidence for the presence of a numerous population of neutron stars has been reported in the literature, turning this region into a very interesting place to look for CWs. In this search, data from the full O3 LIGO-Virgo run in the detector frequency band [10, 2000] Hz have been used. No significant detection was found and 95% confidence level upper limits on the signal strain amplitude were computed, over the full search band, with the deepest limit of about 7.6× 10− 26 at≃ 142 Hz. These results are significantly more constraining than those reported in previous searches. We use these limits to put constraints on the fiducial neutron star ellipticity and r-mode amplitude. These limits can be also translated into constraints in the black hole …

Searches for gravitational waves from known pulsars at two harmonics in the second and third LIGO-Virgo observing runs

Authors

R Abbott,H Abe,F Acernese,K Ackley,N Adhikari,RX Adhikari,VK Adkins,VB Adya,C Affeldt,D Agarwal,M Agathos,K Agatsuma,N Aggarwal,OD Aguiar,L Aiello,A Ain,P Ajith,T Akutsu,S Albanesi,RA Alfaidi,A Allocca,PA Altin,A Amato,A Ananyeva,SB Anderson,WG Anderson,M Ando,T Andrade,N Andres,M Andres-Carcasona,T Andric,S Ansoldi,JM Antelis,S Antier,T Apostolatos,EZ Appavuravther,S Appert,SK Apple,K Arai,A Araya,MC Araya,JS Areeda,M Arene,N Aritomi,N Arnaud,M Arogeti,SM Aronson,KG Arun,H Asada,Y Asali,G Ashton,Y Aso,M Assiduo,S Melo,SM Aston,P Astone,F Aubin,K Aultoneal,C Austin,S Babak,F Badaracco,MKM Bader,C Badger,S Bae,Y Bae,AM Baer,S Bagnasco,Y Bai,M Bailes,J Baird,R Bajpai,T Baka,M Ball,G Ballardin,SW Ballmer,A Balsamo,G Baltus,S Banagiri,B Banerjee,D Bankar,JC Barayoga,C Barbieri,BC Barish,D Barker,P Barneo,F Barone,B Barr,L Barsotti,M Barsuglia,D Barta,J Bartlett,MA Barton,I Bartos,S Basak,R Bassiri,A Basti,M Bawaj,JC Bayley,M Bazzan,BR Becher,B Becsy,VM Bedakihale,F Beirnaert,M Bejger,I Belahcene,V Benedetto,D Beniwal,MG Benjamin,TF Bennett,JD Bentley,M Benyaala,S Bera,M Berbel,F Bergamin,BK Berger,S Bernuzzi,D Bersanetti,A Bertolini,J Betzwieser,D Beveridge,R Are,U Bhardwaj,R Bhatt,D Bhattacharjee,S Bhaumik,A Bianchi,IA Bilenko,G Billingsley,S Bini,R Birney,O Birnholtz,S Biscans,M Bischi,S Biscoveanu,A Bisht,B Biswas,M Bitossi,MA Bizouard,JK Blackburn,CD Blair,DG Blair,RM Blair,F Bobba,N Bode,M Boer,G Bogaert,M Boldrini,GN Bolingbroke,LD Bonavena,F Bondu

Journal

The Astrophysical Journal

Published Date

2022

To date, the LIGO and Virgo observatories have made detections of numerous sources of gravitational radiation. These detections have been of transient gravitational waves (GWs) from the inspiral and subsequent mergers of compact binary objects including binary black holes and binary neutron stars (Abbott et al. 2021a). Recently, the list of observed events expanded to include neutron star, black hole binaries (Abbott et al. 2021b). There remain other types of GW sources that are yet to be observed such as continuous GW (CW) sources. Unlike transients, CW signals are almost monochromatic, with their amplitude and frequency changing very slowly over yearlong timescales. The mass quadrupoles of these sources, such as deformed neutron stars, are expected to be far smaller than those involved in compact binaries, and therefore only the local galactic sources are likely to produce detectable signals. Likely …

Search of the early O3 LIGO data for continuous gravitational waves from the Cassiopeia A and Vela Jr. supernova remnants

Authors

R Abbott,TD Abbott,F Acernese,K Ackley,C Adams,N Adhikari,RX Adhikari,VB Adya,C Affeldt,D Agarwal,M Agathos,K Agatsuma,N Aggarwal,OD Aguiar,L Aiello,A Ain,P Ajith,S Albanesi,A Allocca,PA Altin,A Amato,C Anand,S Anand,A Ananyeva,SB Anderson,WG Anderson,T Andrade,N Andres,T Andrić,SV Angelova,S Ansoldi,JM Antelis,S Antier,S Appert,K Arai,MC Araya,JS Areeda,M Arène,N Arnaud,SM Aronson,KG Arun,Y Asali,G Ashton,M Assiduo,SM Aston,P Astone,F Aubin,C Austin,S Babak,F Badaracco,MKM Bader,C Badger,S Bae,AM Baer,S Bagnasco,Y Bai,J Baird,M Ball,G Ballardin,SW Ballmer,A Balsamo,G Baltus,S Banagiri,D Bankar,JC Barayoga,C Barbieri,BC Barish,D Barker,P Barneo,F Barone,B Barr,L Barsotti,M Barsuglia,D Barta,J Bartlett,MA Barton,I Bartos,R Bassiri,A Basti,M Bawaj,JC Bayley,AC Baylor,M Bazzan,B Bécsy,VM Bedakihale,M Bejger,I Belahcene,V Benedetto,D Beniwal,TF Bennett,JD Bentley,M BenYaala,F Bergamin,BK Berger,S Bernuzzi,D Bersanetti,A Bertolini,J Betzwieser,D Beveridge,R Bhandare,U Bhardwaj,D Bhattacharjee,S Bhaumik,IA Bilenko,G Billingsley,S Bini,R Birney,O Birnholtz,S Biscans,M Bischi,S Biscoveanu,A Bisht,B Biswas,M Bitossi,M-A Bizouard,JK Blackburn,CD Blair,DG Blair,RM Blair,F Bobba,N Bode,M Boer,G Bogaert,M Boldrini,LD Bonavena,F Bondu,E Bonilla,R Bonnand,P Booker,BA Boom,R Bork,V Boschi,N Bose,S Bose,V Bossilkov,V Boudart,Y Bouffanais,A Bozzi,C Bradaschia,PR Brady,A Bramley,A Branch,M Branchesi,JE Brau,M Breschi,T Briant,JH Briggs,A Brillet,M Brinkmann,P Brockill

Journal

Physical review D

Published Date

2022/4/28

We present directed searches for continuous gravitational waves from the neutron stars in the Cassiopeia A (Cas A) and Vela Jr. supernova remnants. We carry out the searches in the LIGO detector data from the first six months of the third Advanced LIGO and Virgo observing run using the weave semicoherent method, which sums matched-filter detection-statistic values over many time segments spanning the observation period. No gravitational wave signal is detected in the search band of 20–976 Hz for assumed source ages greater than 300 years for Cas A and greater than 700 years for Vela Jr. Estimates from simulated continuous wave signals indicate we achieve the most sensitive results to date across the explored parameter space volume, probing to strain magnitudes as low as∼ 6.3× 10− 26 for Cas A and∼ 5.6× 10− 26 for Vela Jr. at frequencies near 166 Hz at 95% efficiency.

Search for subsolar-mass binaries in the first half of advanced ligo’s and advanced virgo’s third observing run

Authors

R Abbott,TD Abbott,F Acernese,K Ackley,C Adams,N Adhikari,RX Adhikari,VB Adya,C Affeldt,D Agarwal,M Agathos,K Agatsuma,N Aggarwal,OD Aguiar,L Aiello,A Ain,P Ajith,S Albanesi,A Allocca,PA Altin,A Amato,C Anand,S Anand,A Ananyeva,SB Anderson,WG Anderson,T Andrade,N Andres,T Andrić,SV Angelova,S Ansoldi,JM Antelis,S Antier,S Appert,K Arai,MC Araya,JS Areeda,M Arène,N Arnaud,SM Aronson,KG Arun,Y Asali,G Ashton,M Assiduo,SM Aston,P Astone,F Aubin,C Austin,S Babak,F Badaracco,MKM Bader,C Badger,S Bae,AM Baer,S Bagnasco,Yuntao Bai,J Baird,M Ball,G Ballardin,SW Ballmer,A Balsamo,G Baltus,S Banagiri,D Bankar,JC Barayoga,C Barbieri,BC Barish,D Barker,P Barneo,F Barone,B Barr,L Barsotti,M Barsuglia,D Barta,J Bartlett,MA Barton,I Bartos,R Bassiri,A Basti,M Bawaj,JC Bayley,AC Baylor,M Bazzan,B Bécsy,VM Bedakihale,M Bejger,I Belahcene,V Benedetto,D Beniwal,TF Bennett,JD Bentley,M Benyaala,F Bergamin,BK Berger,S Bernuzzi,CPL Berry,D Bersanetti,A Bertolini,J Betzwieser,D Beveridge,R Bhandare,U Bhardwaj,D Bhattacharjee,S Bhaumik,IA Bilenko,G Billingsley,S Bini,Ross Birney,O Birnholtz,S Biscans,M Bischi,S Biscoveanu,A Bisht,B Biswas,M Bitossi,M-A Bizouard,JK Blackburn,CD Blair,DG Blair,RM Blair,F Bobba,N Bode,M Boer,G Bogaert,M Boldrini,LD Bonavena,F Bondu,E Bonilla,R Bonnand,P Booker,BA Boom,R Bork,V Boschi,N Bose,S Bose,V Bossilkov,V Boudart,Y Bouffanais,A Bozzi,C Bradaschia,PR Brady,A Bramley,A Branch,M Branchesi,JE Brau,M Breschi,T Briant,JH Briggs,A Brillet,M Brinkmann

Journal

Physical review letters

Published Date

2022/8/5

We report on a search for compact binary coalescences where at least one binary component has a mass between 0.2 M⊙ and 1.0 M⊙ in Advanced LIGO and Advanced Virgo data collected between 1 April 2019 1500 UTC and 1 October 2019 1500 UTC. We extend our previous analyses in two main ways: we include data from the Virgo detector and we allow for more unequal mass systems, with mass ratio q≥ 0.1. We do not report any gravitational-wave candidates. The most significant trigger has a false alarm rate of 0.14 yr− 1. This implies an upper limit on the merger rate of subsolar binaries in the range [220− 24200] Gpc− 3 yr− 1, depending on the chirp mass of the binary. We use this upper limit to derive astrophysical constraints on two phenomenological models that could produce subsolar-mass compact objects. One is an isotropic distribution of equal-mass primordial black holes. Using this model, we …

Model-based cross-correlation search for gravitational waves from the low-mass X-ray binary Scorpius X-1 in LIGO O3 data

Authors

TARUN SOURADEEP,R Abbott,LIGO Scientific Collaboration,Virgo Collaboration,KAGRA Collaboration

Published Date

2022

We present the results of a model-based search for continuous gravitational waves from the low-mass X-ray binary Scorpius X-1 using LIGO detector data from the third observing run of Advanced LIGO and Advanced Virgo. This is a semicoherent search that uses details of the signal model to coherently combine data separated by less than a specified coherence time, which can be adjusted to balance sensitivity with computing cost. The search covered a range of gravitational-wave frequencies from 25 to 1600 Hz, as well as ranges in orbital speed, frequency, and phase determined from observational constraints. No significant detection candidates were found, and upper limits were set as a function of frequency. The most stringent limits, between 100 and 200 Hz, correspond to an amplitude h0 of about 10−25 when marginalized isotropically over the unknown inclination angle of the neutron star's rotation axis, or …

Constraints on dark photon dark matter using data from LIGO’s and Virgo’s third observing run

Authors

R Abbott,TD Abbott,Fausto Acernese,K Ackley,C Adams,N Adhikari,Rana X Adhikari,VB Adya,C Affeldt,D Agarwal,M Agathos,K Agatsuma,N Aggarwal,OD Aguiar,L Aiello,A Ain,P Ajith,T Akutsu,S Albanesi,A Allocca,PA Altin,A Amato,C Anand,S Anand,A Ananyeva,SB Anderson,WG Anderson,M Ando,T Andrade,N Andres,T Andrić,SV Angelova,S Ansoldi,JM Antelis,S Antier,S Appert,Koji Arai,Koya Arai,Y Arai,S Araki,A Araya,MC Araya,JS Areeda,M Arène,N Aritomi,N Arnaud,SM Aronson,KG Arun,H Asada,Y Asali,G Ashton,Y Aso,M Assiduo,SM Aston,P Astone,F Aubin,C Austin,S Babak,F Badaracco,MKM Bader,C Badger,S Bae,Y Bae,AM Baer,S Bagnasco,Y Bai,L Baiotti,J Baird,R Bajpai,M Ball,G Ballardin,SW Ballmer,A Balsamo,G Baltus,S Banagiri,D Bankar,JC Barayoga,C Barbieri,BC Barish,D Barker,P Barneo,F Barone,B Barr,L Barsotti,M Barsuglia,D Barta,J Bartlett,MA Barton,I Bartos,R Bassiri,A Basti,M Bawaj,JC Bayley,AC Baylor,M Bazzan,B Bécsy,VM Bedakihale,M Bejger,I Belahcene,V Benedetto,D Beniwal,TF Bennett,JD Bentley,M BenYaala,F Bergamin,BK Berger,S Bernuzzi,D Bersanetti,A Bertolini,J Betzwieser,D Beveridge,R Bhandare,U Bhardwaj,D Bhattacharjee,S Bhaumik,IA Bilenko,G Billingsley,S Bini,R Birney,O Birnholtz,S Biscans,M Bischi,S Biscoveanu,A Bisht,B Biswas,M Bitossi,M-A Bizouard,JK Blackburn,CD Blair,DG Blair,RM Blair,F Bobba,N Bode,M Boer,G Bogaert,M Boldrini,LD Bonavena,F Bondu,E Bonilla,R Bonnand,P Booker,BA Boom,R Bork,V Boschi,N Bose,S Bose,V Bossilkov,V Boudart,Y Bouffanais,A Bozzi

Journal

Physical review D

Published Date

2022/3/31

We present a search for dark photon dark matter that could couple to gravitational-wave interferometers using data from Advanced LIGO and Virgo’s third observing run. To perform this analysis, we use two methods, one based on cross-correlation of the strain channels in the two nearly aligned LIGO detectors, and one that looks for excess power in the strain channels of the LIGO and Virgo detectors. The excess power method optimizes the Fourier transform coherence time as a function of frequency, to account for the expected signal width due to Doppler modulations. We do not find any evidence of dark photon dark matter with a mass between m A∼ 10− 14–10− 11 eV/c 2, which corresponds to frequencies between 10–2000 Hz, and therefore provide upper limits on the square of the minimum coupling of dark photons to baryons, ie, U (1) B dark matter. For the cross-correlation method, the best median constraint …

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