Molonglo Observatory SNR Catalog for the Southern Galactic Plane
Updated 2mo ago
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Description
A southern Galactic Plane region between 245 and 355 degrees longitude and within ~1.5 degrees latitude is covered by this catalog of supernova remnants. It contains 93 total objects, including 57 known, 18 newly discovered, 16 possible, and 2 reclassified remnants, identified from 0.843 GHz radio observations. The catalog was created by NASA's HEASARC in March 2007 based on data from the Molonglo Observatory Synthesis Telescope.
Use Cases
Identify and study known supernova remnants based on their radio emission properties.
Discover new candidate remnants based on the catalog's list of 16 possible objects.
Analyze the distribution and characteristics of remnants in a specific region of the southern Galactic Plane.
Validate or reclassify astronomical objects based on the two reclassified remnants discussed in the source paper.
Strengths
Contains 93 total objects, providing a focused sample for the target region.
Includes 18 newly discovered remnants and 16 possible candidates for follow-up study.
Based on observations from a specific instrument (MOST) at a defined frequency (0.843 GHz) with 43 arcsecond resolution.
Limitations
Column-level documentation is absent; field semantics must be inferred after download.
Row count is unknown, which may limit suitability assessment.
Data may reflect geographic bias inherent to the specific Galactic Plane survey area.
Provenance
Source
NASA HEASARC, based on CDS table J/A+AS/118/329.
Collection Method
Observations from 650 overlapping fields using the Molonglo Observatory Synthesis Telescope (MOST).
Freshness
Last updated 2026-03-13 17:05:33.921651; freshness should be verified.