SIMBAD references

2011ApJ...735....3X - Astrophys. J., 735, 3 (2011/July-1)

An off-axis relativistic jet model for the type IC supernova SN 2007gr.


Abstract (from CDS):

We propose an off-axis relativistic jet model for the Type Ic supernova SN 2007gr. Most of the energy (∼2x1051 erg) in the explosion is contained in non-relativistic ejecta which produces the supernova (SN). The optical emission comes from the decay process of 56Ni synthesized in the bulk SN ejecta. Only very little energy (∼1048 erg) is contained in the relativistic jet with initial velocity about 0.94 times the speed of light. The radio and X-ray emission comes from this relativistic jet. With some typical parameters of a Wolf-Rayet star (progenitor of Type Ic SN), i.e., the mass-loss rate {dot}M=1.0x 10^{-5} M_ø yr^{-1} and the wind velocity vw= 1.5x103 km/s together with an observing angle of θobs= 63°.3, we can obtain multiband light curves that fit the observations well. All the observed data are consistent with our model. Thus, we conclude that SN 2007gr contains a weak relativistic jet and we observe the jet from off-axis.

Abstract Copyright:

Journal keyword(s): gamma-ray burst: general - supernovae: individual: SN 2007gr

Simbad objects: 10

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