Astronomy and Astrophysics – Astrophysics
Scientific paper
1999-05-26
Astronomy and Astrophysics
Astrophysics
5 pages, no figures, uses emulateapj.sty
Scientific paper
We use recent results in binary stellar evolution to argue that binaries with at least one black hole dominate the rate of compact-object mergers. Two phenomena generally attributable to such mergers, gamma-ray bursts and gravity-wave bursts, are therefore likely to originate from near the event horizon of a black hole. In addition to sheer numbers, black holes have an added advantage over neutron stars in both phenomena. For gamma-ray bursts, the presence of an event horizon eases the baryon pollution problem, because energy can be stored into rotation until most baryons have been swallowed, and then released into a cleaner environment via the Blandford-Znajek process. For gravity-wave bursts, black holes offer higher luminosities due to their higher masses, thus enabling detection out to larger distances, which leads to a 30-fold increase in the predicted LIGO event rate.
Bethe Hans A.
Brown Gerald E.
Lee Chang Hoon
Lee Han-Koo
Wijers Ralph A. M. J.
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