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Stochastic Template Bank for Gravitational Wave Searches for Precessing Neutron Star-Black Hole Coalescence EventsGravitational wave searches to date have largely focused on non-precessing systems. Including precession effects greatly increases the number of templates to be searched over. This leads to a corresponding increase in the computational cost and can increase the false alarm rate of a realistic search. On the other hand, there might be astrophysical systems that are entirely missed by non-precessing searches. In this paper we consider the problem of constructing a template bank using stochastic methods for neutron star-black hole binaries allowing for precession, but with the restrictions that the total angular momentum of the binary is pointing toward the detector and that the neutron star spin is negligible relative to that of the black hole. We quantify the number of templates required for the search, and we explicitly construct the template bank. We show that despite the large number of templates, stochastic methods can be adapted to solve the problem. We quantify the parameter space region over which the non-precessing search might miss signals.
Document ID
20170002442
Document Type
Reprint (Version printed in journal)
Authors
Indik, Nathaniel (Max-Planck-Inst. fuer Gravitationsphysik Hanover, Germany)
Haris, K. (Indian Institute for Science Education and Research (IISER-TVM) Thiruvananthapuram, India)
Dal Canton, Tito (Universities Space Research Association Greenbelt, MD, United States)
Fehrmann, Henning (Max-Planck-Inst. fuer Gravitationsphysik Hanover, Germany)
Krishnan, Badri (Max-Planck-Inst. fuer Gravitationsphysik Hanover, Germany)
Lundgren, Andrew (Leibniz Universitaet Hannover, Germany)
Nielsen, Alex B. (Max-Planck-Inst. fuer Gravitationsphysik Hanover, Germany)
Pai, Archana (Indian Institute for Science Education and Research (IISER-TVM) Thiruvananthapuram, India)
Date Acquired
March 23, 2017
Publication Date
January 1, 2017
Publication Information
Publication: American Physical Society
Subject Category
Astrophysics
Report/Patent Number
LIGO-P1600330
GSFC-E-DAA-TN40321
Funding Number(s)
CONTRACT_GRANT: NNH15CO48B
Distribution Limits
Public
Copyright
Other
Keywords
gravitational wave
black hole
neutron star