Multi-Dimensional Simulations of Radiative Transfer in Aspherical Core-Collapse Supernovae

Details Multi-Dimensional Simulations of Radiative Transfer in Aspherical Core-Collapse Supernovae Multi-Dimensional Simulations of Radiative Transfer in Aspherical Core-Collapse Supernovae

2008-06-10

arxiv.org/abs/0806.1590v1

AIP Conf.Proc.1016:249-254,2008

Astronomy and Astrophysics

Astrophysics

6 pages, 4 figures. Proceedings of "Origin of Matter and Evolution of Galaxies (OMEG07): From the Dawn of Universe to the Form

Scientific paper

10.1063/1.2943581

We study optical radiation of aspherical supernovae (SNe) and present an approach to verify the asphericity of SNe with optical observations of extragalactic SNe. For this purpose, we have developed a multi-dimensional Monte-Carlo radiative transfer code, SAMURAI (SupernovA MUlti-dimensional RAdIative transfer code). The code can compute the optical light curve and spectra both at early phases (<~ 40 days after the explosion) and late phases (~ 1 year after the explosion), based on hydrodynamic and nucleosynthetic models. We show that all the optical observations of SN 1998bw (associated with GRB 980425) are consistent with polar-viewed radiation of the aspherical explosion model with kinetic energy 20 x 10^{51} ergs. Properties of off-axis hypernovae are also discussed briefly.

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