Revealing local failed supernovae with neutrino telescopes

Details Revealing local failed supernovae with neutrino telescopes Revealing local failed supernovae with neutrino telescopes

2011-03-23

arxiv.org/abs/1103.4628v2

Phys.Rev.D84:063002,2011

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

LaTeX, 4 pages, 4 figures; minor changes to the text, results unchanged

Scientific paper

10.1103/PhysRevD.84.063002

We study the detectability of neutrino bursts from nearby direct black hole-forming collapses (failed supernovae) at Megaton detectors. Due to their high energetics, these bursts could be identified - by the time coincidence of N >= 2 or N >= 3 events within a ~ 1 s time window - from as far as ~ 4-5 Mpc away. This distance encloses several supernova-rich galaxies, so that failed supernova bursts could be detected at a rate of up to one per decade, comparable to the expected rate of the more common, but less energetic, neutron star-forming collapses. Thus, the detection of a failed supernova within the lifetime of a Mt detector is realistic. It might give the first evidence of direct black hole formation, with important implications on the physics of this phenomenon.

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