NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-08-25 T07:22:37 PDT
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For refcode 2006A&A...450..241S:
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NED Abstract

Copyright by European Southern Observatory (ESO). Reproduced by permission
2006A&A...450..241S Constraints on the progenitor systems of type Ia supernovae M. Stritzinger, B. Leibundgut, S. Walch and G. Contardo Received 17 June 2005 / Accepted 2 December 2005 Bolometric light curves provide a valuable insight into the nature of type Ia supernovae. We present an analysis of sixteen well-observed type Ia supernovae. Constraints are placed on several global parameters concerning the progenitor system, explosion mechanism, and subsequent radiation transport. By fitting a radioactive decay energy deposition function to the quasi-exponential phase (50 to 100 days after maximum light), it is found that the ejected mass varies by at least a factor of two. This result suggests that a sub Chandrasekhar mass white dwarf could be the progenitor system of some type Ia supernovae. We find that the range in the amount of synthesized^56^Ni indicates a significant variation in the burning mechanism. In order to explain a factor of ten range in the observed bolometric luminosity, more detailed modeling of the explosion mechanism is required. Key words: stars: supernovae: general
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