{"paper":{"title":"Star Formation Activity in the Long, Filamentary Infrared Dark Cloud G53.2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Bon-Chul Koo, Christopher J. Davis, Hyun-Jeong Kim","submitted_at":"2015-02-16T16:19:12Z","abstract_excerpt":"We present star formation activity in the infrared dark cloud (IRDC) G53.2, a remarkable IRDC located at Galactic coordinates $(l,b)\\sim(53^{\\circ}.2,\\,0^{\\circ}.0)$ based on the census of young stellar object (YSO) candidates. IRDC G53.2 was previously identified as several IRDCs in mid-IR images, but it is in fact a long ($\\gtrsim$45 pc) cloud, well consistent with a CO cloud at $v\\sim23$ \\kms\\ (or at $d\\sim$1.7 kpc). We present a point-source catalog of IRDC G53.2 that contains $\\sim$370 sources from our photometry of the {\\it Spitzer} MIPS 24 \\um\\ data and Galactic Legacy Infrared Mid-Plan"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.04598","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"}