The Second Epoch Molonglo Galactic Plane Survey: Images and Candidate Supernova Remnants

Abstract

The second epoch Molonglo Galactic Plane Survey covers the area 245° ≤ l ≤ 365° and |b| ≤ 10° at a frequency of 843 MHz and an angular resolution of 45 arcsec × 45 arcsec cosec(δ). The sensitivity varies between 1-2 mJy beam-1 depending on the presence of strong extended sources. This survey is currently the highest resolution and most sensitive large-scale continuum survey of the southern Galactic plane. In this paper, we present the images of the complete survey, including postage stamps of some new supernova remnant (SNR) candidates and a discussion of the highly structured features detected in the interstellar medium. The intersection of these two types of features is discussed in the context of the 'missing' SNR population in the Galaxy.