Abstract
The discovery of GW170817 with gravitational waves (GWs) and electromagnetic (EM) radiation is prompting new questions in strong-gravity astrophysics. Importantly, it remains unknown whether the progenitor of the merger comprised two neutron stars (NSs) or a NS and a black hole (BH). Using new numerical-relativity simulations and incorporating modeling uncertainties, we produce novel GW and EM observables for NS-BH mergers with similar masses. A joint analysis of GW and EM measurements reveals that if GW170817 is a NS-BH merger, ?40% of the binary parameters consistent with the GW data are compatible with EM observations.
Original language | English |
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Article number | 63021 |
Journal | Physical Review D |
Volume | 100 |
Issue number | 6 |
DOIs | |
Publication status | Published - 30 Sept 2019 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)