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

Ivan Marti-Vidal (Institutionen för rymd- och geovetenskap, Onsala rymdobservatorium) ; J.M. Márcaide ; A. Alberdi ; J.C. Guirado ; M.A. Pérez-Torres ; E. Ros
Astronomy and Astrophysics (0004-6361). Vol. 526 (2011), 18,
[Artikel, refereegranskad vetenskaplig]

We report on a simultaneous modelling of the expansion and radio light curves of the supernova SN1993J. We 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 a standard emission model for supernovae, which is extended with some physical considerations, such as an evolution in the opacity of the ejecta material, a radial decline in the magnetic fields within the radiating region, and a changing radial density profile for the circumstellar medium starting from day 3100 after the explosion. © 2011 ESO.

Nyckelord: acceleration of particles , galaxies: individual: M 81 , radiation mechanisms: non-thermal , radio continuum: stars , supernovae: general , supernovae: individual: SN1993J



Denna post skapades 2014-09-28.
CPL Pubid: 203407

 

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