TY - JOUR

T1 - Binary black hole spectroscopy

T2 - A no-hair test of GW190814 and GW190412

AU - Capano, Collin D.

AU - Nitz, Alexander H.

N1 - Funding Information: We acknowledge the Max Planck Gesellschaft. We are extremely grateful to Carsten Aulbert, Henning Fehrmann, and the computing team from AEI Hannover for their significant technical support. We thank Sebastian Khan and Frank Ohme for useful discussions with regards to gravitational-waveform models. We also thank Frans Pretorius, Luis Lehner, and Alex Nielsen for providing helpful comments on alternative theories of gravity and the no-hair theorem. This research has made use of data obtained from the Gravitational Wave Open Science Center (https://www.gw-openscience.org/), a service of LIGO Laboratory, the LIGO Scientific Collaboration and the Virgo Collaboration. LIGO Laboratory and Advanced LIGO are funded by the United States National Science Foundation (NSF) as well as the Science and Technology Facilities Council (STFC) of the United Kingdom, the Max-Planck-Society (MPS), and the State of Niedersachsen/Germany for support of the construction of Advanced LIGO and construction and operation of the GEO600 detector. Additional support for Advanced LIGO was provided by the Australian Research Council. Virgo is funded, through the European Gravitational Observatory (EGO), by the French Centre National de Recherche Scientifique (CNRS), the Italian Istituto Nazionale della Fisica Nucleare (INFN) and the Dutch Nikhef, with contributions by institutions from Belgium, Germany, Greece, Hungary, Ireland, Japan, Monaco, Poland, Portugal, and Spain.

PY - 2020/12/29

Y1 - 2020/12/29

N2 - Gravitational waves provide a window to probe general relativity (GR) under extreme conditions. The recent observations of GW190412 and GW190814 are unique high-mass-ratio mergers that enable the observation of gravitational-wave harmonics beyond the dominant (ℓ,m)=(2,2) mode. Using these events, we search for physics beyond GR by allowing the source parameters measured from the subdominant harmonics to deviate from that of the dominant mode. All results are consistent with GR. We constrain the chirp mass as measured by the (ℓ,m)=(3,3) mode to be within 0-3+5% of the dominant mode when we allow both the masses and spins of the subdominant modes to deviate. If we allow only the mass parameters to deviate, we constrain the chirp mass of the (3,3) mode to be within ±1% of the expected value from GR.

AB - Gravitational waves provide a window to probe general relativity (GR) under extreme conditions. The recent observations of GW190412 and GW190814 are unique high-mass-ratio mergers that enable the observation of gravitational-wave harmonics beyond the dominant (ℓ,m)=(2,2) mode. Using these events, we search for physics beyond GR by allowing the source parameters measured from the subdominant harmonics to deviate from that of the dominant mode. All results are consistent with GR. We constrain the chirp mass as measured by the (ℓ,m)=(3,3) mode to be within 0-3+5% of the dominant mode when we allow both the masses and spins of the subdominant modes to deviate. If we allow only the mass parameters to deviate, we constrain the chirp mass of the (3,3) mode to be within ±1% of the expected value from GR.

UR - http://www.scopus.com/inward/record.url?scp=85099119978&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.102.124070

DO - 10.1103/PhysRevD.102.124070

M3 - Article

AN - SCOPUS:85099119978

VL - 102

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 12

M1 - 124070

ER -