GW190412: Observation of a binary-black-hole coalescence with asymmetric masses

Abbott, R. et al. (2020) GW190412: Observation of a binary-black-hole coalescence with asymmetric masses. Physical Review D, 102(4), 043015. (doi: 10.1103/PhysRevD.102.043015)

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Abstract

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 ∼30M⊙ black hole merged with a ∼8M⊙ 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 ratio of this system differs from all previous detections, we show that it is consistent with the population model of stellar binary black holes inferred from the first two observing runs.

Item Type:Articles
Keywords:Gravitational waves, astronomical black holes.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Grant, Mr Alastair and Spencer, Mr Andrew and Pearlstone, Brynley and Messenger, Dr Christopher and Masso Reid, Ms Mariela and Bell, Dr Angus and Williams, Mr Daniel and Pascucci, Daniela and Utina, Mr Andrei and Toland, Mr Karl and Hayes, Mr Fergus and Hammond, Professor Giles and Hild, Professor Stefan and Barr, Dr Bryan and Sorazu Lucio, Dr Borja and Cummings, Ms Rebecca and Steinlechner, Dr Jessica and Veitch, Dr John and Linley, Mr Jethro and Kinley-Hanlon, Maya Marie Antoinette and Heng, Professor Ik Siong and Dupej, Peter and van Veggel, Dr Marielle and Tait, Mr Simon and Briggs, Mr Joseph and Singha, Ms Ayatri and Zhang, Mr Teng and Hendry, Professor Martin and Scott, Dr Jamie and Mangano, Valentina and Rowan, Professor Sheila and Martin, Dr Iain and Robertson, Professor Norna and Chan, Mr Man Leong and Tornasi, Zeno and Mukherjee, Dr Arunava and Gabbard, Mr Hunter and Cumming, Dr Alan and Berry, Dr Christopher and Cunningham, Dr Liam and Gray, Ms Rachel and Woan, Professor Graham and WRIGHT, Jennifer and Steinlechner, Dr Sebastian and Datrier, Ms Laurence and Hough, Professor James and Huttner, Dr Sabina and Callaghan, Mr Jack and Bayley, Mr Joseph and Strain, Professor Kenneth and Jones, Mr Russell and Eddolls, Graeme and Haughian, Dr Karen and De Lillo, Nicola and Murray, Dr Peter
Authors: Abbott, R., Abbott, T. D., Abraham, S., Acernese, F., Ackley, K., Adams, C., Adhikari, R. X., Adya, V. B., Affeldt, C., Agathos, M., Agatsuma, K., Aggarwal, N., Aguiar, O. D., Aich, A., Aiello, L., Ain, A., Ajith, P., Akcay, S., Allen, G., Allocca, A., Altin, P. A., Amato, A., Anand, S., Ananyeva, A., Anderson, S. B., Anderson, W. G., Angelova, S. V., Ansoldi, S., Antier, S., Appert, S., Arai, K., Araya, M. C., Areeda, J. S., Arène, M., Arnaud, N., Aronson, S. M., Arun, K. G., Asali, Y., Ascenzi, S., Ashton, G., Aston, S. M., Astone, P., Aubin, F., Aufmuth, P., AultONeal, K., Austin, C., Avendano, V., Babak, S., Bacon, P., Badaracco, F., Bader, M. K. M., Bae, S., Baer, A. M., Baird, J., Baldaccini, F., Ballardin, G., Ballmer, S. W., Bals, A., Balsamo, A., Baltus, G., Banagiri, S., Bankar, D., Bankar, R. S., Barayoga, J. C., Barbieri, C., Barish, B. C., Barker, D., Barkett, K., Barneo, P., Barone, F., Barr, B., Barsotti, L., Barsuglia, M., Barta, D., Bartlett, J., Bartos, I., Bassiri, R., Basti, A., Bawaj, M., Bayley, J. C., Bazzan, M., Bécsy, B., Bejger, M., Belahcene, I., Bell, A. S., Beniwal, D., Benjamin, M. G., Benkel, R., Bentley, J. D., Bergamin, F., Berger, B. K., Bergmann, G., Bernuzzi, S., Berry, C. P. L., Bersanetti, D., Bertolini, A., Betzwieser, J., Bhandare, R., Bhandari, A. V., Bidler, J., Biggs, E., Bilenko, I. A., Billingsley, G., Birney, R., Birnholtz, O., Biscans, S., Bischi, M., Biscoveanu, S., Bisht, A., Bissenbayeva, G., Bitossi, M., Bizouard, M. A., Blackburn, J. K., Blackman, J., Blair, C. D., Blair, D. G., Blair, R. M., Bobba, F., Bode, N., Boer, M., Boetzel, Y., Bogaert, G., Bondu, F., Bonilla, E., Bonnand, R., Booker, P., Boom, B. A., Bork, R., Boschi, V., Bose, S., Bossilkov, V., Bosveld, J., Bouffanais, Y., Bozzi, A., Bradaschia, C., Brady, P. R., Bramley, A., Branchesi, M., Brau, J. E., Breschi, M., Briant, T., Briggs, J. H., Brighenti, F., Brillet, A., Brinkmann, M., Brito, R., Brockill, P., Brooks, A. F., Brooks, J., Brown, D. D., Brunett, S., Bruno, G., Bruntz, R., Buikema, A., Bulik, T., Bulten, H. J., Buonanno, A., Buskulic, D., Byer, R. L., Cabero, M., Cadonati, L., Cagnoli, G., Cahillane, C., Calderón Bustillo, J., Callaghan, J. D., Callister, T. A., Calloni, E., Camp, J. B., Canepa, M., Cannon, K. C., Cao, H., Cao, J., Carapella, G., Carbognani, F., Caride, S., Carney, M. F., Carullo, G., Casanueva Diaz, J., Casentini, C., Castañeda, J., Caudill, S., Cavaglià, M., Cavalier, F., Cavalieri, R., Cella, G., Cerdá-Durán, P., Cesarini, E., Chaibi, O., Chakravarti, K., Chan, C., Chan, M., Chao, S., Charlton, P., Chase, E. A., Chassande-Mottin, E., Chatterjee, D., Chaturvedi, M., Chatziioannou, K., Chen, H. Y., Chen, X., Chen, Y., Cheng, H.-P., Cheong, C. K., Chia, H. Y., Chiadini, F., Chierici, R., Chincarini, A., Chiummo, A., Cho, G., Cho, H. 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Subjects:Q Science > QB Astronomy
Q Science > QC Physics
College/School:College of Science and Engineering > School of Physics and Astronomy
Research Group:Institute for Gravitational Research
Journal Name:Physical Review D
Publisher:American Physical Society
ISSN:2470-0010
ISSN (Online):2470-0029
Published Online:24 August 2020
Copyright Holders:Copyright © 2020 American Physical Society
First Published:First published Physical Review D 102(4): 043015
Publisher Policy:Reproduced under a Creative Commons License
Related URLs:

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
173808Investigations in gravitational radiationSheila RowanScience and Technology Facilities Council (STFC)ST/N005422/1P&S - Physics & Astronomy
172131Proposal for UK Involvement in the Operation of Advanced LIGOKenneth StrainScience and Technology Facilities Council (STFC)ST/N00003X/1P&S - Physics & Astronomy
309290Advanced LIGO Operations SupportKenneth StrainScience and Technology Facilities Council (STFC)ST/V001019/1P&S - Physics & Astronomy