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Constraints on the Progenitor Systems of Type Ia Supernovae

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arxiv astro-ph/0506415 v2 pith:5XIGQ6HE submitted 2005-06-17 astro-ph

Maximilian Stritzinger (MPA) , Bruno Leibundgut (ESO) , Stefanie Walch (USM) , Gertrud Contardo (MPA) This is my paper · ORCID
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keywords mechanismprogenitorsupernovaetypebolometricconstraintsexplosionfactor
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UVOIR bolometric light curves provide valuable insight into the nature of type Ia supernovae. We present an analysis of sixteen well-observed SNe Ia. 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 model could be responsible for 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.

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Forward citations

Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. ZTF SN Ia DR2 follow-up: early excess in Type Ia supernova light curves

    astro-ph.CO 2026-07 conditional novelty 5.0 of 10

    Up to about a quarter of Type Ia supernovae may have an early light-curve bump, but the candidate list depends strongly on the detection method and neither leading explosion model is clearly preferred.

  2. Type Ia supernovae

    astro-ph.HE 2024-11 unverdicted

    A review of Type Ia supernovae covering their physics, observational diversity, progenitor scenarios, and open questions, with no new research results.

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