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Core-collapse supernovae in low-metallicity environments and future all-sky transient surveys
D. R. Young, S. J. Smartt, S. Mattila +5
Aims: Massive stars in low-metallicity environments may produce exotic explosions such as long-duration gamma-ray bursts and pair-instability supernovae when they die as core-colla…
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…
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…
A giant outburst two years before the core-collapse of a massive star
A. Pastorello, S. J. Smartt, S. Mattila +32
The death of massive stars produces a variety of supernovae, which are linked to the structure of the exploding stars. The detection of several precursor stars of Type II supernova…