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A post-mortem investigation of the Type IIb supernova 2001ig


Ryder, S and Murrowood, CE and Stathakis, RA, A post-mortem investigation of the Type IIb supernova 2001ig, Monthly Notices of the Royal Astronomical Society, 369, (1) pp. L32-L36. ISSN 0035-8711 (2006) [Refereed Article]

DOI: doi:10.1111/j.1745-3933.2006.00168.x


We present images taken with the Gemini Multi-Object Spectrograph on Gemini-South, in excellent (<0.5 arcsec) seeing, of supernova (SN) 2001ig in NGC 7424, ~1000 d after explosion. A point source seen at the site of the SN is shown to have colours inconsistent with being an H II region or a SN 1993J-like remnant, but can be matched to a late-B through late-F supergiant with AV < 1. We believe this object is the massive binary companion responsible for periodic modulation in mass-loss material around the Wolf-Rayet progenitor which gave rise to significant structure in the SN radio light curve. © 2006 The Authors. Journal compilation © 2006 RAS.

Item Details

Item Type:Refereed Article
Research Division:Physical Sciences
Research Group:Astronomical sciences
Research Field:Galactic astronomy
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the physical sciences
UTAS Author:Murrowood, CE (Miss Clair Murrowood)
ID Code:39805
Year Published:2006
Web of Science® Times Cited:50
Deposited By:Physics
Deposited On:2006-08-01
Last Modified:2007-03-21

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