http://arxiv.org/abs/2008.09846
The gravitational wave detection by LIGO-Virgo scientific collaboration show that the binary black hole (BBH) systems with BH mass of tens of solar masses widely exist in the universe. Two main types of scenarios have been invoked for the formation of BBH systems, including isolated binary evolution in galactic fields and dynamical interactions in dense environments. Here we propose that if the BBH systems are formed from isolated binary evolution, the supernova signal associated with the second core collapse would show some identifiable features, due to the accretion feedback from the companion BH. Depending on the binary properties, we show that the supernova lightcurve could present a sharp peak around $\sim10$ days, with luminosity even at the level of the super luminous supernovae ( e.g. $\sim10^{44}~\rm erg~s^{-1}$) or present a plateau feature lasting for several tens of days with regular luminosity of core collapse supernovae. Comparing the event rate density of these special supernova signals with the event rate density of LIGO-Virgo detected BBH systems could help to distinguish the BBH formation channel.
H. Gao, L. Liu and W. Lei
Tue, 25 Aug 20
-1145/99
Comments: 5 pages, 1 figure, comments are welcome!