Authors
Ryan Abbott, TD Abbott, S Abraham, Fausto Acernese, K Ackley, A Adams, C Adams, Rana X Adhikari, VB Adya, C Affeldt, D Agarwal, M Agathos, K Agatsuma, N Aggarwal, OD Aguiar, L Aiello, A Ain, T Akutsu, KM Aleman, G Allen, A Allocca, PA Altin, A Amato, S Anand, A Ananyeva, SB Anderson, WG Anderson, M Ando, SV Angelova, S Ansoldi, JM Antelis, S Antier, S Appert, Koya Arai, Koji Arai, Y Arai, S Araki, A Araya, MC Araya, JS Areeda, M Arène, N Aritomi, N Arnaud, SM Aronson, H Asada, Y Asali, G Ashton, Y Aso, SM Aston, P Astone, F Aubin, P Aufmuth, K Aultoneal, C Austin, S Babak, F Badaracco, MKM Bader, S Bae, Y Bae, AM Baer, S Bagnasco, Y Bai, L Baiotti, J Baird, R Bajpai, M Ball, G Ballardin, SW Ballmer, M Bals, A Balsamo, G Baltus, S Banagiri, D Bankar, RS Bankar, JC Barayoga, C Barbieri, BC Barish, D Barker, P Barneo, S Barnum, F Barone, Bryan 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, MG Benjamin, TF Bennett, JD Bentley, M Benyaala, F Bergamin, BK Berger, S Bernuzzi, D Bersanetti, A Bertolini, J Betzwieser, R Bhandare, AV Bhandari, D Bhattacharjee, S Bhaumik, J Bidler, IA Bilenko, G Billingsley, R Birney, O Birnholtz, S Biscans, M Bischi, S Biscoveanu, A Bisht, B Biswas, M Bitossi, M-A Bizouard, JK Blackburn, J Blackman, CD Blair, DG Blair, RM Blair, F Bobba, N Bode, M Boer, G Bogaert, M Boldrini, François 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
Publication date
2021/7/15
Journal
Physical Review D
Volume
104
Issue
2
Pages
022004
Publisher
American Physical Society
Description
We report results of a search for an isotropic gravitational-wave background (GWB) using data from Advanced LIGO’s and Advanced Virgo’s third observing run (O3) combined with upper limits from the earlier O1 and O2 runs. Unlike in previous observing runs in the advanced detector era, we include Virgo in the search for the GWB. The results of the search are consistent with uncorrelated noise, and therefore we place upper limits on the strength of the GWB. We find that the dimensionless energy density at the 95% credible level for a flat (frequency-independent) GWB, using a prior which is uniform in the log of the strength of the GWB, with 99% of the sensitivity coming from the band 20–76.6 Hz; at 25 Hz for a power-law GWB with a spectral index of (consistent with expectations for compact binary coalescences), in the band 20–90.6 Hz; and at 25 Hz for a spectral …
Total citations
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