Abstract
A black hole neutron star (BHNS) merger occurs when a black hole and a neutron star come close enough to merge during the Hubble time. (BHNS), unlike binary mergers (BBHs and BNSs), are harder to detect. The first (BHNS) merger was detected in 2020 by gravitational wave detectors, the Laser Interferometer Gravitational-Wave Observatory (LIGO), and Virgo. (BHNS) systems typically form in an isolated binary system and can merge by tidal disruption or the black hole swallowing the neutron star. Studying (BHNS) mergers is crucial in understanding various physical processes, including the equation of the state of the neutron star and stellar formation. Observations of these systems will allow us to compare them with the theoretical models, better understand gravitational waves, and test general relativity more scrupulously. In this paper, we demonstrate the formation process of (BHNS) systems and their merger dynamics. Moreover, we present a survey of all (BHNS) mergers detected by the LIGO and Virgo detectors until the end of the third observation run (O3). We also identify the observation candidates for (BHNS) merger events in the fourth observation run (O4). Finally, we show the new detection sensitivities for the upgraded LIGO detector scheduled to operate in May 2023. This will help us understand the new limits of observing more (BHNS) mergers in the future.
| Original language | English |
|---|---|
| Journal | Proceedings of the International Astronautical Congress, IAC |
| Volume | 2023-October |
| Publication status | Published - 2023 |
| Externally published | Yes |
| Event | 74th International Astronautical Congress, IAC 2023 - Baku, Azerbaijan Duration: Oct 2 2023 → Oct 6 2023 |
Keywords
- BHNS mergers
- gravitational waves
- LIGO
- Virgo
ASJC Scopus subject areas
- Aerospace Engineering
- Astronomy and Astrophysics
- Space and Planetary Science