Searching for the Progenitors of Type Ia Supernova

Details Searching for the Progenitors of Type Ia Supernova Searching for the Progenitors of Type Ia Supernova

May 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21821903d&link_type=abstract

American Astronomical Society, AAS Meeting #218, #219.03; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

Type Ia supernovae are important cosmic probes. To understand and eliminate systematic uncertainties, it is important to know the nature and characteristics of their progenitors. I will talk about recent progress that may allow us to search for and identify progenitors within our own Galaxy, using data from wide-field surveys such as SDSS, Pan-STARRS, and LSST. We will consider the nuclear-burning phase that is expected to occur in both single-degenerate and double-degenerate models. We will also consider the expected characteristics just prior to explosion in the new class of spin-up/spin-down models. Finally, we will discuss the prospects for finding the progenitors in external galaxies, in light of the fact that most do not appear as x-ray sources, or else have a low duty cycle of x-ray activity.

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