Progenitor Properties as Key for the Diversity of Type Ia Supernovae

Details Progenitor Properties as Key for the Diversity of Type Ia Supernovae Progenitor Properties as Key for the Diversity of Type Ia Supernovae

Apr 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002chee.conf..257h&link_type=abstract

CURRENT HIGH-ENERGY EMISSION AROUND BLACK HOLES . Proceedings of the 2nd KIAS Astrophysics Workshop. Held 3-8 September 2001 in

Astronomy and Astrophysics

Astrophysics

Scientific paper

We discuss the influence of the progenitor on the observable properties of Type Ia Supernovae (SN). The study is based on spherical and 3-D calculations for the explosions, light curves, and flux and polarization spectra. The current status of models and open questions are addressed. In some detail, we discuss the a) the influence of the main sequence mass and metalicity, b) the nature of subluminous SNe Ia at the example of SN1999by and, c) the thermonuclear runaway in the exploding WD. In combination with recent observations, our study suggests that the progenitor properties are key to understand the diversity of SNe Ia. The implications are discussed for the use of SNe Ia to constrain the cosmological equation of state.

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