Simulated synchrotron emission for the Tycho's SNR: an asymmetric initial mass model

MORANCHEL-BASURTO, A; VELAZQUEZ, PF; ARES DE PRAGA, G.; REYNOSO E. M.; SCHNEITER, E M; ESQUIVEL, A

Congreso; 43rd COSPAR Scientific Assembly 2020; 2020

We have performed three-dimensional magnetohydrodynamics (MHD) numerical simulationswith the aim of exploring the scenario in which the initial mass distribution of a supernova(SN) explosion is anisotropic. The purpose is to analyze if this scenario can also explain theradio-continuum emission and the expansion observed in young supernova remnants (SNRs).To study the expansion, synthetic polarized synchrotron emission maps were computed from theMHD simulations. We found a good agreement (under a number of assumptions) between thisexpansion study and previous observational results applied to Tycho?s SNR, which representsa good example of asymmetric young SNRs. Additionally, both the observed morphology andthe brightness distribution are qualitatively reproduced.