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Implications of recoil kicks for black hole mergers from LIGO/Virgo catalogs by Giacomo Fragione; Abraham Loeb is a Physics and Astronomy article available to read on EtoBox.
What is Implications of recoil kicks for black hole mergers from LIGO/Virgo catalogs about?
## ABSTRACT The first and second Gravitational Wave Transient Catalogs by the LIGO/Virgo Collaboration include 50 confirmed merger events from the first, second, and first half of the third observational runs. We compute the distribution of recoil kicks imparted to the merger remnants and estimate their retention probability within various astrophysical environments as a function of the maximum progenitor spin (χmax), assuming that the LIGO/Virgo binary black hole (BBH) mergers were catalyzed by dynamical assembly in a dense star cluster. We find that the distributions of average recoil kicks are peaked at about $150\, \rm km\, s^{-1}$, $250\, \rm km\, s^{-1}$, $350\, \rm km\, s^{-1}$, $600\, \rm km\, s^{-1}$, for maximum progenitor spins of 0.1, 0.3, 0.5, 0.8, respectively. Only environments with escape speed ${\gtrsim}100\, \rm km\, s^{-1}$, as found in galactic nuclear star clusters as well as in the most massive globular clusters and super star clusters, could efficiently retain the merger remnants of the LIGO/Virgo BBH population even for low progenitor spins (χmax = 0.1). In the case of high progenitor spins (χmax ≳ 0.5), only the most massive nuclear star clusters can retain
Who reads Implications of recoil kicks for black hole mergers from LIGO/Virgo catalogs?
It is typically read by researchers, students, and practitioners in Physics and Astronomy.
- Author
- Giacomo Fragione; Abraham Loeb
- Publisher
- Oxford University Press (OUP)
- Published
- 2021
- Language
- EN
- Field
- Physics and Astronomy (Physical Sciences)