SIMBAD references

2018MNRAS.480.1696J - Mon. Not. R. Astron. Soc., 480, 1696-1704 (2018/October-3)

The quiescent progenitors of four Type II-P/L supernovae.

JOHNSON S.A., KOCHANEK C.S. and ADAMS S.M.

Abstract (from CDS):

We present Large Binocular Telescope difference imaging data for the final years of four Type II-P/L supernovae progenitors. For all four, we find no significant evidence for stochastic or steady variability in the U, B, V, or R bands. Our limits constrain variability to no more than roughly 5-10per cent of the expected R-band luminosities of the progenitors. These limits are comparable to the observed variability of red supergiants in the Magellanic Clouds. Based on these four events, the probability of a Type II-P/L progenitor having an extended outburst after Oxygen ignition is < 37 per cent at 90 per cent confidence. Our observations cannot exclude short outbursts in which the progenitor returns to within ∼10 per cent of its quiescent flux on the time-scale of months with no dust formation.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: massive - supernovae: general - supernovae: individual: (SN 2013am, SN 2013ej, ASASSN-2016fq, SN 2017eaw)

Simbad objects: 18

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2021.09.25-21:22:13

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