Contribution of High – Mass Black Holes to Mergers of Compact Binaries

Content Provider	Semantic Scholar
Author	Newman, Hans A. Bethe Floyd R.
Copyright Year	1998
Abstract	We consider the merging of high-mass black-hole binaries of the Cyg X–1 type, in which the O–star companion becomes a neutron star following a supernova explosion. Our estimated rate of mergers, ∼ 2 × 10yr for the Galaxy, is relatively low because of the paucity of high–mass black holes. None the less, because of their high masses, these black-hole, neutron-star binaries could contribute importantly to the merging sought by LIGO. From stellar evolutionary calculations including mass loss, we estimate that a ZAMS mass of ∼ 80 M⊙ is necessary before a high–mass black hole can result in a massive binary. We estimate the detection rate for LIGO of high-mass black hole neutron-star mergers to be a factor ∼ 40 greater than that for binary neutron stars. We suggest how our high cut-off mass can be reconciled with the requirements of nucleosynthesis, and show that a bimodal distribution with masses of black holes can account, at least qualitatively, for the many transient sources which contain high-mass black holes.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://arxiv.org/pdf/astro-ph/9805355v2.pdf
Alternate Webpage(s)	http://arxiv.org/pdf/astro-ph/9805355v1.pdf
Language	English
Access Restriction	Open
Subject Keyword	Black Hole GUCY2C protein, human Intelligence explosion Mass Spectrometry Neutrons Requirement Star Trek: Stars, Celestial Stellar (payment network)
Content Type	Text
Resource Type	Article