On the Determination of the Evolutionary Status of Supernova Remnants from Radio Observation Data

Abstract

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 based on the location of observationally obtained radio surface brightness and corresponding diameter of an SNR on the theoretically derived Sigma-D tracks; the second one based on the forms of radio spectra; and the third one, 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 radio domain. Additionally, this concept was applied for several SNRs, observed by the Australia Telescope Compact Array (ATCA), and the corresponding results are reviewed here. Moreover, some of the results are revised in this review to reflect the updated recently published Sigma-D and eqp analyses.

Topical Review accepted for publication in PASP

References in corpus (11)

• On the radio spectra of supernova remnants
• Radio Evolution of Supernova Remnants Including Non-linear Particle Acceleration: Insights from Hydrodynamic Simulations
• Radio Observations of Supernova Remnant G1.9+0.3
• The ASKAP-EMU Early Science Project:Radio Continuum Survey of the Small Magellanic Cloud
• HFPK 334: An unusual Supernova Remnant in the Small Magellanic Cloud
• Turbulence and Particle Acceleration in Radiative Shock Waves in the Cygnus Loop II: Development of Postshock Turbulence
• An Analysis of the Broadband (22-3900 MHz) Radio Spectrum of HB3 (G132.7+1.3): The Detection of Thermal Radio Emission from an Evolved Supernova Remnant?
• On the continuum radio-spectrum of Cas A: possible evidence of the non-linear particle acceleration
• Multiple accelerated particle populations in the Cygnus Loop with Fermi-LAT
• Radio Emission from Interstellar Shocks: Young Type Ia Supernova Remnants and the Case of N 103B in the Large Magellanic Cloud
• On calibration of some distance scales in astrophysics