On the spherical-axial transition in supernova remnants
L. Zaninetti
TL;DR
This paper introduces a new law of motion for supernova remnants that accounts for swept matter and models asymmetrical expansion, validated with observations of specific supernovae.
Contribution
A novel law of motion incorporating swept matter is proposed and applied to model both spherical and aspherical supernova remnants.
Findings
The new law fits 10-year observations of SN1993J.
Aspherical expansions of SN1006 and SN1987a are successfully modeled.
The model simulates observed rings in SN1987a.
Abstract
A new law of motion for supernova remnant (SNR) which introduces the quantity of swept matter in the thin layer approximation is introduced. This new law of motion is tested on 10 years observations of SN1993J. The introduction of an exponential gradient in the surrounding medium allows to model an aspherical expansion. A weakly asymmetric SNR, SN1006, and a strongly asymmetric SNR, SN1987a, are modeled. In the case of SN1987a the three observed rings are simulated.
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