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On the Determination of the Evolutionary Status of Supernova Remnants from Radio Observation Data
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On the Determination of the Evolutionary Status of Supernova Remnants from Radio Observation Data
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Journal Article
On the Determination of the Evolutionary Status of Supernova Remnants from Radio Observation Data
2022
Overview
This paper aims to give a brief review of a new concept for the preliminary determination of the evolutionary status of supernova remnants (SNRs). Data obtained by radio observations in continuum are used. There are three different methods underlying the new concept: The first one is based on the location of the observationally obtained radio surface brightness and the corresponding diameter of an SNR in theoretically derived Σ– D tracks, the second one is based on the forms of radio spectra, and the third one is based on the magnetic field strengths that are estimated through the equipartition (eqp) calculation. Using a combination of these methods, developed over the last two decades by the Belgrade SNR Research Group, we can estimate the evolutionary status of SNRs. This concept helps radio observers to determine preliminarily the stage of the evolution of an SNR observed in the radio domain. Additionally, this concept was applied to several SNRs, observed by the Australia Telescope Compact Array, and the corresponding results are reviewed here. Moreover, some of the results are revised in this review to reflect the recently published updated Σ– D and eqp analyses.
Publisher
The Astronomical Society of the Pacific,IOP Publishing
Subject
