Reports new distance estimates for nine southern Galactic supernova remnants (1.81–10.85 kpc) using Mopra CO data to identify interacting molecular clouds combined with DECaPS 3D dust extinction maps.
Some statistics of Galactic SNRs
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abstract
The selection effects applicable to the identification of Galactic supernova remnants (SNRs) at radio wavelengths are discussed. Low surface brightness remnants are missing, as are those with small angular sizes (including young but distant SNRs). Several statistical properties of Galactic SNRs are discussed, including the surface-brightness/diameter (Sigma-D) relation. The wide range of intrinsic properties of Galactic remnants with known distances, and the observational selection effects, means that the Sigma-D relation is of limited use to derive diameters and hence distances for individual SNRs, or for statistical studies.
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Distance Determination of Southern Galactic Plane Supernova Remnants with the Mopra CO Survey and DECaPS 3D Dust Map
Reports new distance estimates for nine southern Galactic supernova remnants (1.81–10.85 kpc) using Mopra CO data to identify interacting molecular clouds combined with DECaPS 3D dust extinction maps.