This paper examines relations between the radio surface brightness Sigma and the diameter D (also known as Sigma-D relations) for a sample of extragalactic supernova remnants (SNRs) as constructed from a combination of published data and data from our own surveys. Our sample of extragalactic SNRs is the largest ever devised for the purpose of analyzing Sigma-D relations.
Cone search capability for table J/A+A/435/437/tablea1 (The basic quantities for 148 SNRs in nearby galaxies used for deriving of the updated {Sigma}-D relations.)