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

verfasst von
The LIGO Scientific Collaboration , Virgo Collaboration , R. Abbott, T. D. Abbott, S. Abraham, F. Acernese, K. Ackley, C. Adams, R. X. Adhikari, V. B. Adya, C. Affeldt, M. Agathos, K. Agatsuma, N. Aggarwal, O. D. Aguiar, A. Aich, L. Aiello, A. Ain, P. Ajith, S. Akcay, G. Allen, A. Allocca, P. A. Altin, A. Amato, S. Anand, A. Ananyeva, S. B. Anderson, W. G. Anderson, S. V. Angelova, S. Ansoldi, S. Antier, S. Appert, K. Arai, M. C. Araya, J. S. Areeda, M. Arène, N. Arnaud, S. M. Aronson, K. G. Arun, Y. Asali, S. Ascenzi, G. Ashton, S. L. Danilishin, K. Danzmann, M. Heurs, H. Lück, D. Steinmeyer, H. Vahlbruch, L.-w. Wei, D. M. Wilken, B. Willke, H. Wittel, Sukanta Bose, D. D. Brown, Y. B. Chen, J. Gniesmer, Manuela Hanke, J. Hennig, M. T. Hübner, Sanjeev Kumar, R. N. Lang, C. H. Lee, H. M. Lee, H. W. Lee, J. Lee, K. Lee, X. Li, C. A. Rose, D. Rose, J. R. Sanders, Patricia Schmidt, L. Sun, Y. F. Wang, L. V. White, D. S. Wu, L. Zhang, X. J. Zhu, Minchuan Zhou, Fabio Bergamin, Aparna Bisht, Nina Bode, P. Booker, Marc Brinkmann, M. Cabero, N. Gohlke, J. Heinze, O. de Varona, S. Hochheim, J. Junker, W. Kastaun, Stefan Kaufer, S. Khan, R. Kirchhoff, P. Koch, S. M. Köhlenbeck, Volker Kringel, N. V. Krishnady, G. Kuehn, S. Leavey, J. Lehmann, J. Liu, James Lough, Moritz Mehmet, Fabian Meylahn, Nikhil Mukund, M. Nery, F. Ohme, P. Oppermann, Emil Schreiber, B. W. Schulte, Y. Setyawati, M. Phelps, M. Standke, M. Steinke, Michael Weinert, F. Wellmann, Peter Weßels, W. Winkler, J. Woehler, Peter Aufmuth, Gerald Bergmann, N. Koper
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 05â¶30â¶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 ∼30 M⊙ black hole merged with a ∼8 M⊙ 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.

Organisationseinheit(en)
QUEST Leibniz Forschungsschule
Institut für Gravitationsphysik
QuantumFrontiers
Externe Organisation(en)
Australian National University
Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut)
Washington State University Pullman
Inter-University Centre for Astronomy and Astrophysics India
University of Adelaide
Universität Hamburg
Monash University
Tata Institute of Fundamental Research (TIFR HYD)
LIGO Laboratory
Inje University
Stanford University
California Institute of Technology (Caltech)
California State University Fullerton
The California State University
Radboud Universität Nijmegen (RU)
University of Melbourne
University of Texas Rio Grande Valley
Syracuse University
Northwestern University
Typ
Artikel
Journal
Physical Review D
Band
102
Anzahl der Seiten
29
ISSN
2470-0010
Publikationsdatum
24.08.2020
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Physik und Astronomie (sonstige)
Elektronische Version(en)
https://arxiv.org/abs/2004.08342 (Zugang: Offen)
https://doi.org/10.1103/PhysRevD.102.043015 (Zugang: Offen)
https://doi.org/10.15488/11392 (Zugang: Offen)
 

Details im Forschungsportal „Research@Leibniz University“