Authors
R Abbott, TD Abbott, S Abraham, F Acernese, K Ackley, C Adams, Rana X Adhikari, VB Adya, Christoph Affeldt, M Agathos, K Agatsuma, N Aggarwal, OD Aguiar, A Aich, L Aiello, A Ain, P Ajith, S Akcay, G Allen, A Allocca, PA Altin, A Amato, S Anand, A Ananyeva, SB Anderson, WG Anderson, SV Angelova, S Ansoldi, S Antier, S Appert, K Arai, MC Araya, JS Areeda, M Arène, N Arnaud, SM Aronson, KG Arun, Y Asali, STEFANO Ascenzi, G Ashton, SM Aston, P Astone, F Aubin, P Aufmuth, K Aultoneal, C Austin, V Avendano, S Babak, P Bacon, F Badaracco, MKM Bader, S Bae, AM Baer, J Baird, F Baldaccini, G Ballardin, SW Ballmer, A Bals, A Balsamo, G Baltus, S Banagiri, D Bankar, RS Bankar, JC Barayoga, C Barbieri, BC Barish, D Barker, K Barkett, P Barneo, F Barone, B Barr, L Barsotti, M Barsuglia, D Barta, J Bartlett, I Bartos, R Bassiri, A Basti, M Bawaj, JC Bayley, M Bazzan, B Bécsy, M Bejger, I Belahcene, AS Bell, D Beniwal, MG Benjamin, R Benkel, JD Bentley, F Bergamin, BK Berger, G Bergmann, S Bernuzzi, CPL Berry, D Bersanetti, A Bertolini, J Betzwieser, R Bhandare, AV Bhandari, J Bidler, E Biggs, IA Bilenko, G Billingsley, R Birney, O Birnholtz, S Biscans, M Bischi, S Biscoveanu, A Bisht, G Bissenbayeva, M Bitossi, MA Bizouard, JK Blackburn, J Blackman, CD Blair, DG Blair, RM Blair, F Bobba, N Bode, M Boer, Y Boetzel, G Bogaert, F Bondu, E Bonilla, R Bonnand, P Booker, BA Boom, R Bork, V Boschi, S Bose, V Bossilkov, J Bosveld, Y Bouffanais, A Bozzi, C Bradaschia, PR Brady, A Bramley, M Branchesi, JE Brau, M Breschi, T Briant, JH Briggs, F Brighenti, A Brillet, M Brinkmann, R Brito, P Brockill, AF Brooks, J Brooks, DD Brown
Publication date
2020/8/15
Journal
Physical Review D
Volume
102
Issue
4
Pages
043015
Publisher
American Physical Society
Description
We report the observation of gravitational waves from a binary-black-hole coalescence during the first two weeks of LIGO’s and Virgo’s third observing run. The signal was recorded on April 12, 2019 at 05∶30∶44 UTC with a network signal-to-noise ratio of 19. The binary is different from observations during the first two observing runs most notably due to its asymmetric masses: a black hole merged with a black hole companion. The more massive black hole rotated with a dimensionless spin magnitude between 0.22 and 0.60 (90% probability). Asymmetric systems are predicted to emit gravitational waves with stronger contributions from higher multipoles, and indeed we find strong evidence for gravitational radiation beyond the leading quadrupolar order in the observed signal. A suite of tests performed on GW190412 indicates consistency with Einstein’s general theory of relativity. While the mass …
Scholar articles
R Abbott, TD Abbott, S Abraham, F Acernese, K Ackley… - Physical Review D, 2020