Radio emission of SN1993J. The complete picture: II. Simultaneous fit of expansion and radio light curves

Details Radio emission of SN1993J. The complete picture: II. Simultaneous fit of expansion and radio light curves Radio emission of SN1993J. The complete picture: II. Simultaneous fit of expansion and radio light curves

2010-07-07

arxiv.org/abs/1007.1224v4

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

12 pages, 12 figures, accepted for publication in A&A

Scientific paper

We report on a simultaneous modelling of the expansion and radio light curves of SN1993J. We have developed a simulation code capable of generating synthetic expansion and radio light curves of supernovae by taking into consideration the evolution of the expanding shock, magnetic fields, and relativistic electrons, as well as the finite sensitivity of the interferometric arrays used in the observations. Our software successfully fits all the available radio data of SN 1993J with an standard emission model for supernovae extended with some physical considerations, as an evolution in the opacity of the ejecta material, a radial drop of the magnetic fields inside the radiating region, and a changing radial density profile of the circumstellar medium beyond day 3100 after explosion.

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