{"paper":{"title":"A New $\\Sigma-D$ Relation and Its Application to the Galactic Supernova Remnant Distribution","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Dipen Bhattacharya (U. C. Riverside), Gary L. Case","submitted_at":"1998-07-15T19:17:51Z","abstract_excerpt":"Technological advances in radio telescopes and X-ray instruments over the last 20 years have greatly increased the number of known supernova remnants (SNRs) and led to a better determination of their properties. In particular, more SNRs now have reasonably determined distances. However, many of these distances were determined kinematically using old rotation curves (based on $R_{\\sun} = 10$ kpc and $V_{\\sun} = 250$ km/s). A more modern rotation curve (based on $R_{\\sun} = 8.5$ kpc and $V_{\\sun} = 220$ km/s) is used to verify or recalculate the distances to these remnants. We use a sample of 36"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9807162","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}