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Photometric Observations of the Type Ia SN 2002er in UGC 10743
G. Pignata, F. Patat, S. Benetti +20
Extensive light and colour curves for the Type Ia supernova SN 2002er are presented as part of the European Supernova Collaboration. We have collected UBVRI photometry from ten dif…
Detection of a red supergiant progenitor star of a type II-plateau supernova
S. J. Smartt, J. R. Maund, M. A. Hendry +4
We present the discovery of a red supergiant star that exploded as supernova 2003gd in the nearby spiral galaxy M74. The Hubble Space Telescope (HST) and the Gemini Telescope image…
The massive binary companion star to the progenitor of supernova 1993J
J. R. Maund, S. J. Smartt, R. P. Kudritzki +2
The massive star which underwent core-collapse to produce SN1993J was identified as a non-variable red supergiant star in images of the galaxy M81 taken before explosion. However t…