SNe and GRB Evolution in the Winds of Massive Stars [Oral Contribution]

Details SNe and GRB Evolution in the Winds of Massive Stars [Oral Contribution] SNe and GRB Evolution in the Winds of Massive Stars [Oral Contribution]

Feb 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006sgrb.confe..19d&link_type=abstract

Presented at the KITP Conference: Supernova and Gamma-Ray Burst Remnants, Feb 7, 2006, Kavli Institute for Theoretical Physics,

Physics

Scientific paper

I discuss the formation and growth of the medium around massivestars, especially Wolf-Rayet stars, and its impact on the evolution of theresultant shock wave when the star ends its life as a SN. The circumstellarmedium is formed by mass-loss from the star during its various evolutionarystages. Using analytical calculations and numerical simulations, I studythe evolution of this medium, multidimensional effects such ashydrodynamical instabilities, and the onset of turbulence. When the starexplodes as a SN, the resulting shock wave will interact with thismedium. I further explore the impact of the ambient medium on the expansionof the shock wave and the evolution of the remnant. Similarly, the impacton GRB afterglows and absorption spectra of GRBs is considered.

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