Spectral Modeling of SNe Ia Near Maximum Light: Probing the Characteristics of Hydrodynamical Models | Zendy

E. Baron | Zendy; S. Bongard | Zendy; David Branch | Zendy; P. H. Hauschildt | Zendy

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Spectral Modeling of SNe Ia Near Maximum Light: Probing the Characteristics of Hydrodynamical Models

Author(s) -

E. Baron,

S. Bongard,

David Branch,

P. H. Hauschildt

Publication year - 2006

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/504101

Subject(s) - parameterized complexity , deflagration , physics , detonation , spectral line , line (geometry) , computational physics , astrophysics , mechanics , statistical physics , explosive material , mathematics , algorithm , geometry , chemistry , astronomy , organic chemistry

29 pages, 14 figures, ApJ, in press - SupernovaeWe have performed detailed NLTE spectral synthesis modeling of 2 types of 1-D hydro models: the very highly parameterized deflagration model W7, and two delayed detonation models. We find that overall both models do about equally well at fitting well observed SNe Ia near to maximum light. However, the Si II 6150 feature of W7 is systematically too fast, whereas for the delayed detonation models it is also somewhat too fast, but significantly better than that of W7. We find that a parameterized mixed model does the best job of reproducing the Si II 6150 line near maximum light and we study the differences in the models that lead to better fits to normal SNe Ia. We discuss what is required of a hydro model to fit the spectra of observed SNe Ia near maximum light

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