@article{10ad0463a745463aa4b57d3df9378717,

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

abstract = "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 further IMBH mergers. We quantify the sensitivity of the individual search methods and of the combined search using a suite of IMBH binary signals obtained via numerical relativity, including the effects of spins misaligned with the binary orbital axis, and present the resulting upper limits on astrophysical merger rates. Our most stringent limit is for equal mass and aligned spin BH binary of total mass 200 M· and effective aligned spin 0.8 at 0.056 Gpc-3 yr-1 (90% confidence), a factor of 3.5 more constraining than previous LIGO-Virgo limits. We also update the estimated rate of mergers similar to GW190521 to 0.08 Gpc-3 yr-1. ",

keywords = "Black hole physics, Gravitational waves, Stars: black holes",

author = "{LIGO Scientific Collaboration and Virgo Collaboration} and R. Abbott and Abbott, {T. D.} and F. Acernese and K. Ackley and C. Adams and N. Adhikari and Adhikari, {R. X.} and Adya, {V. B.} and C. Affeldt and D. Agarwal and M. Agathos and K. Agatsuma and N. Aggarwal and Aguiar, {O. D.} and L. Aiello and A. Ain and P. Ajith and T. Akutsu and S. Albanesi and A. Allocca and Altin, {P. A.} and A. Amato and C. Anand and S. Anand and A. Ananyeva and Anderson, {S. B.} and Anderson, {W. G.} and M. Ando and T. Andrade and N. Andres and T. Andri{\'c} and Angelova, {S. V.} and S. Ansoldi and Antelis, {J. M.} and S. Antier and S. Appert and K. Arai and K. Arai and Y. Arai and S. Araki and A. Araya and Araya, {M. C.} and Areeda, {J. S.} and M. Ar{\`e}ne and N. Aritomi and N. Arnaud and Aronson, {S. M.} and Arun, {K. G.} and H. Asada and Y. Asali and G. Ashton and Y. Aso and M. Assiduo and Aston, {S. M.} and P. Astone and F. Aubin and C. Austin and S. Babak and F. Badaracco and Bader, {M. K.M.} and C. Badger and S. Bae and Y. Bae and Baer, {A. M.} and S. Bagnasco and Y. Bai and L. Baiotti and J. Baird and R. Bajpai and M. Ball and G. Ballardin and Ballmer, {S. W.} and A. Balsamo and G. Baltus and S. Banagiri and D. Bankar and Barayoga, {J. C.} and C. Barbieri and Barish, {B. C.} and D. Barker and P. Barneo and F. Barone and B. Barr and L. Barsotti and M. Barsuglia and D. Barta and J. Bartlett and Barton, {M. A.} and I. Bartos and R. Bassiri and A. Basti and M. Bawaj and Bayley, {J. C.} and Baylor, {A. C.} and M. Bazzan and B. B{\'e}csy and Bedakihale, {V. M.} and M. Bejger and I. Belahcene and V. Benedetto and D. Beniwal and Bennett, {T. F.} and Bentley, {J. D.} and M. Benyaala and F. Bergamin and Berger, {B. K.} and S. Bernuzzi and Berry, {C. P.L.} and D. Bersanetti and A. Bertolini and J. Betzwieser and D. Beveridge and R. Bhandare and U. Bhardwaj and D. Bhattacharjee and S. Bhaumik and Bilenko, {I. A.} and G. Billingsley and S. Bini and R. Birney and O. Birnholtz and S. Biscans and M. Bischi and S. Biscoveanu and A. Bisht and B. Biswas and M. Bitossi and Bizouard, {M. A.} and Blackburn, {J. K.} and Blair, {C. D.} and Blair, {D. G.} and Blair, {R. M.} and F. Bobba and N. Bode and M. Boer and G. Bogaert and M. Boldrini and Bonavena, {L. D.} and F. Bondu and E. Bonilla and R. Bonnand and P. Booker and Boom, {B. A.} and R. Bork and V. Boschi and N. Bose and S. Bose and V. Bossilkov and V. Boudart and Y. Bouffanais and A. Bozzi and C. Bradaschia and Brady, {P. R.} and A. Bramley and A. Branch and M. Branchesi and Brau, {J. E.} and M. Breschi and T. Briant and Briggs, {J. H.} and A. Brillet and M. Brinkmann and P. Brockill and Brooks, {A. F.} and J. Brooks and Brown, {D. D.} and S. Brunett and G. Bruno and R. Bruntz and J. Bryant and T. Bulik and Bulten, {H. J.} and A. Buonanno and R. Buscicchio and D. Buskulic and C. Buy and Byer, {R. L.} and L. Cadonati and G. Cagnoli and C. Cahillane and {Calder{\'o}n Bustillo}, J. and Callaghan, {J. D.} and Callister, {T. A.} and E. Calloni and J. Cameron and Camp, {J. B.} and M. Canepa and S. Canevarolo and M. Cannavacciuolo and Cannon, {K. C.} and H. Cao and Z. Cao and E. Capocasa and E. Capote and G. Carapella and F. Carbognani and Carlin, {J. B.} and Carney, {M. F.} and M. Carpinelli and G. Carrillo and G. Carullo and Carver, {T. L.} and {Casanueva Diaz}, J. and C. Casentini and G. Castaldi and S. Caudill and M. Cavagli{\`a} and F. Cavalier and R. Cavalieri and M. Ceasar and G. Cella and P. Cerd{\'a}-Dur{\'a}n and E. Cesarini and W. Chaibi and K. Chakravarti and {Chalathadka Subrahmanya}, S. and E. Champion and Chan, {C. H.} and Chan, {C. L.} and Chan, {C. L.} and K. Chan and M. Chan and K. Chandra and P. Chanial and S. Chao and P. Charlton and Chase, {E. A.} and E. Chassande-Mottin and C. Chatterjee and D. Chatterjee and D. Chatterjee and M. Chaturvedi and S. Chaty and K. Chatziioannou and C. Chen and Chen, {H. Y.} and J. Chen and K. Chen and X. Chen and Chen, {Y. B.} and Chen, {Y. R.} and Z. Chen and H. Cheng and Cheong, {C. K.} and Cheung, {H. Y.} and Chia, {H. Y.} and F. Chiadini and Chiang, {C. Y.} and G. Chiarini and M. Thomas",

note = "Publisher Copyright: {\textcopyright} ",

year = "2022",

doi = "10.1051/0004-6361/202141452",

language = "English",

volume = "659",

journal = "Astronomy and Astrophysics",

issn = "1432-0746",

publisher = "EDP Sciences",

}