Simulated synchrotron emission for the Tycho’s supernova remnants: an asymmetric initial mass model

ABSTRACT We have performed 3D magnetohydrodynamics (MHD) numerical simulations with the aim of exploring the scenario in which the initial mass distribution of a supernova (SN) explosion is anisotropic. The purpose is to analyse if this scenario can also explain the radio-continuum emission and the...

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Bibliographic Details
Published in:Monthly notices of the Royal Astronomical Society 2020-05, Vol.494 (2), p.1531-1538
Main Authors: Moranchel-Basurto, A, Velázquez, P F, Ares de Parga, G, Reynoso, E M, Schneiter, E M, Esquivel, A
Format: Article
Language:English
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Summary:ABSTRACT We have performed 3D magnetohydrodynamics (MHD) numerical simulations with the aim of exploring the scenario in which the initial mass distribution of a supernova (SN) explosion is anisotropic. The purpose is to analyse if this scenario can also explain the radio-continuum emission and the expansion observed in young supernova remnants (SNRs). To study the expansion, synthetic polarized synchrotron emission maps were computed from the MHD simulations. We found a good agreement (under a number of assumptions) between this expansion study and previous observational results applied to Tycho’s SNR, which represents a good example of asymmetric young SNRs. Additionally, both the observed morphology and the brightness distribution are qualitatively reproduced.
ISSN:0035-8711
1365-2966
DOI:10.1093/mnras/staa627