paper

The Search for Failed Supernovae with the Large Binocular Telescope: Constraints from 7 Years of Data

arXiv:1610.02402 · doi:10.1093/mnras/stx898

Abstract

We report updated results for the first 7 years of our program to monitor 27 galaxies within 10 Mpc using the Large Binocular Telescope to search for failed supernovae (SNe) -- core-collapses of massive stars that form black holes without luminous supernovae. In the new data, we identify no new compelling candidates and confirm the existing candidate. Given the 6 successful core-collapse SNe in the sample and one likely failed SN, the implied fraction of core-collapses that result in failed SNe is at 90% confidence. If the current candidate is a failed SN, the fraction of failed SN naturally explains the missing high-mass red supergiant SN progenitors and the black hole mass function. If the current candidate is ultimately rejected, the data implies a 90% confidence upper limit on the failed SN fraction of .

13 pages, 18 figures, 2 tables. Accepted to MNRAS

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