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VLT detection of a red supergiant progenitor of the type IIP supernova 2008bk
S. Mattila, S. J. Smartt, J. J. Eldridge +3
We report the identification of a source coincident with the position of the nearby type II-P supernova (SN) 2008bk in high quality optical and near-infrared pre-explosion images f…
The death of massive stars - I. Observational constraints on the progenitors of type II-P supernovae
S. J. Smartt, J. J. Eldridge, R. M. Crockett +1
We present the results of a 10.5 yr, volume limited (28 Mpc) search for supernova (SN) progenitor stars. We compile all SNe discovered within this volume (132, of which 27% are typ…
The type IIb SN 2008ax: spectral and light curve evolution
A. Pastorello, M. M. Kasliwal, R. M. Crockett +12
We present spectroscopy and photometry of the He-rich supernova (SN) 2008ax. The early-time spectra show prominent P-Cygni H lines, which decrease with time and disappear completel…
The type IIb SN 2008ax: the nature of the progenitor
R. M. Crockett, J. J. Eldridge, S. J. Smartt +9
A source coincident with the position of the type IIb supernova (SN) 2008ax is identified in pre-explosion Hubble Space Telescope (HST) Wide Field Planetary Camera 2 observations i…
Massive stars exploding in a He-rich circumstellar medium. II. The transitional case of SN 2005la
A. Pastorello, R. M. Quimby, S. J. Smartt +7
We present photometric and spectroscopic data of the peculiar SN 2005la, an object which shows an optical light curve with some luminosity fluctuations and spectra with comparably…
The birth place of the type Ic Supernova 2007gr
R. Mark Crockett, Justyn R. Maund, Stephen J. Smartt +8
We report our attempts to locate the progenitor of the peculiar type Ic SN 2007gr in HST pre-explosion images of the host galaxy, NGC 1058. Aligning adaptive optics Altair/NIRI ima…
A deeper search for the progenitor of the Type Ic Supernova 2002ap
R. M. Crockett, S. J. Smartt, J. J. Eldridge +6
(Abridged) We present a search for the progenitor star of the Type Ic Supernova 2002ap in deep, high quality pre-explosion observations taken with the Canada-France-Hawaii Telescop…
SN 2004A: Another Type II-P Supernova with a Red Supergiant Progenitor
M. A. Hendry, S. J. Smartt, R. M. Crockett +8
We present a monitoring study of SN 2004A and probable discovery of a progenitor star in pre-explosion HST images. The photometric and spectroscopic monitoring of SN 2004A show tha…