Formation of mass gap compact object and black hole binary from Population III stars

Abstract

We performed population synthesis simulations of Population III binary stars with Maxwellian kick velocity distribution when MGCOs (Mass Gap Compact Objects with mass 2--5$M_{\odot }$) are formed. We found that for eight kick velocity dispersion models of ${\sigma }_{\mathrm{k}}=0$--$500$ km/s, the mean mass of black hole (BH)-MGCO binary is $\sim (30M_{\odot },2.6M_{\odot })$. In numerical data of our simulations, we found the existence of BH-MGCO binary with mass $(22.9M_{\odot },2.5M_{\odot })$ which looks like GW190814.

comments welcome. accepted by PTEP

Cited by in corpus (3)

• GW190814: On the properties of the secondary component of the binary
• Scope out multiband gravitational-wave observations of GW190521-like binary black holes with space gravitational wave antenna B-DECIGO
• A Common Origin for Low Mass Ratio Events Observed by LIGO and Virgo in the First Half of the Third Observing Run