{"paper":{"title":"The Spitzer c2d Survey of Large, Nearby, Interstellar Clouds. III. Perseus Observed with IRAC","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Alicia Porras, Anneila I. Sargent, David W. Koerner, Deborah L. Padgett, Ewine F. van Dishoeck, Geoffrey A. Blake, Jes K. Jorgensen, Kaisa E. Young, Karl R. Stapelfeldt, Lee G. Mundy, Lori E. Allen, Lucas Cieza, Luisa Rebull, Neal J. Evans II, Nicholas Chapman, Paul M. Harvey, Philip C. Myers, Shih-Ping Lai, Tracy L. Huard, Tyler L. Bourke, William Spiesman, Zahed Wahhaj","submitted_at":"2006-03-21T00:35:58Z","abstract_excerpt":"We present observations of 3.86 sq. deg. of the Perseus molecular cloud complex with the Spitzer Space Telescope Infrared Array Camera (IRAC). The maps show strong extended emission arising from shocked H2 in outflows in the region and from polycyclic aromatic hydrocarbon features. More than 120,000 sources are extracted toward the cloud. Based on their IRAC colors and comparison to off-cloud and extragalactic fields, we identify 400 candidate young stellar objects. About two thirds of these are associated with the young clusters IC348 and NGC1333, while the last third is distributed over the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0603547","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"}