{"paper":{"title":"ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): Discovery of an extremely dense and compact object embedded in the prestellar core G208.68-19.92-N2","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Alessio Traficante, Chang Won Lee, Chin-Fei Lee, David J. Eden, Dipen Sahu, Doug Johnstone, Hong-Li Liu, Huei-Ru Vivien Chen, Isabelle Ristorcelli, Ken'ichi Tatematsu, Leonardo Bronfman, Mark G. Rawlings, Naomi Hirano, Pak Shing Li, Shanghuo Li, Sheng-Jun Lin, Sheng-Yaun Liu, Shih-Ying Hsu, Somnath Dutta, Tie Liu, Woojin Kwon, Yi-Jehng Kuan","submitted_at":"2023-11-09T12:11:23Z","abstract_excerpt":"The internal structure of the prestellar core G208.68-19.02-N2 (G208-N2) in the Orion Molecular Cloud 3 (OMC-3) region has been studied with the Atacama Large Millimeter/submillimeter Array (ALMA). The dust continuum emission revealed a filamentary structure with a length of $\\sim$5000 au and an average H$_2$ volume density of $\\sim$6 $\\times$ 10$^7$ cm$^{-3}$. At the tip of this filamentary structure, there is a compact object, which we call a ``nucleus\", with a radius of $\\sim$150--200 au and a mass of $\\sim$0.1 M$_{\\odot}$. The nucleus has a central density of $\\sim$2 $\\times$ 10$^9$ cm$^{-"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2311.05308","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2311.05308/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}