The Properties of a Black Hole-Neutron Star Merger Candidate

Understand

The LIGO/Virgo Consortium (LVC) released a preliminary announcement of a candidate gravitational wave signal, S190426c, that could have arisen from a black hole-neutron star merger.

• As the first such candidate system, it's properties such as masses and spin are of great interest.
• Although LVC policy prohibits disclosure of these properties in preliminary announcements, LVC does release the estimated probabilities that this system is in specific categories, such as binary neutron star, binary black hole and black hole-neutron star.
• LVC also releases information concerning relative signal strength, distance, and the probability that ejected mass or a remnant disc survived the merger.