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Date and Time of the Query: 2019-08-18 T02:34:23 PDT
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For refcode 2010ApJ...714L.280F:
Retrieve 11 NED objects in this reference.
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NED Abstract

Copyright by American Astronomical Society. Reproduced by permission
2010ApJ...714L.280F On the Progenitor and Early Evolution of the Type II Supernova 2009kr Fraser, M.; Takats, K.; Pastorello, A.; Smartt, S. J.; Mattila, S.; Botticella, M.-T.; Valenti, S.; Ergon, M.; Sollerman, J.; Arcavi, I.; Benetti, S.; Bufano, F.; Crockett, R. M.; Danziger, I. J.; Gal-Yam, A.; Maund, J. R.; Taubenberger, S.; Turatto, M. Abstract. We identify a source coincident with SN 2009kr in Hubble Space Telescope pre-explosion images. The object appears to be a single point source with an intrinsic color V - I = 1.1 +/- 0.25 and M_V_ = -7.6 +/- 0.6. If this is a single star, it would be a yellow supergiant of log L/L_sun_ ~ 5.1 and a mass of 15^+5^_-4_ M_sun_. The spatial resolution does not allow us yet to definitively determine if the progenitor object is a single star, a binary system, or a compact cluster. We show that the early light curve is similar to a Type IIL SN, but the prominent H{alpha} P-Cygni profiles and the signature of the end of a recombination phase are reminiscent of a Type IIP. The evolution of the expanding ejecta will play an important role in understanding the progenitor object. Key words: galaxies: individual: NGC 1832, stars: evolution, supernovae: general, supernovae: individual: SN 2009kr
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