Self-similar expansion of polytropic gas: Application to the supernovae photosphere dynamics

Details Self-similar expansion of polytropic gas: Application to the supernovae photosphere dynamics Self-similar expansion of polytropic gas: Application to the supernovae photosphere dynamics

Nov 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009sf2a.conf..255b&link_type=abstract

SF2A-2009: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics, held 29 June - 4 July 2009 in

Astronomy and Astrophysics

Astrophysics

Scientific paper

In this paper we analyze the self-similar expansion of polytropic gas in order to predict the evolution of the supernovae photosphere. We consider a specific solution that we obtained thanks to similarity considerations and which permits to extract an explicit expression of the photosphere dynamics. The latter is compared to silicium line dynamics of 25 SN Ia.

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