{"paper":{"title":"A SiO J = 5 - 4 Survey Toward Massive Star Formation Regions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"Fei Li, Juan Li, Junzhi Wang, Min Fang, Qingfeng Zhu, Qizhou Zhang, Shanghuo Li, Shaoshan Zeng, Zhi-Yu Zhang","submitted_at":"2019-05-21T01:04:25Z","abstract_excerpt":"We performed a survey in the SiO $J=5\\rightarrow4$ line toward a sample of 199 Galactic massive star-forming regions at different evolutionary stages with the SMT 10 m and CSO 10.4 m telescopes. The sample consists of 44 infrared dark clouds (IRDCs), 86 protostellar candidates, and 69 young \\HII\\ regions. We detected SiO $J=5\\rightarrow4$ line emission in 102 sources, with a detection rate of 57\\%, 37\\%, and 65\\% for IRDCs, protostellar candidates, and young \\HII\\ regions, respectively. We find both broad line with Full Widths at Zero Power (FWZP) $>$ 20 \\kms and narrow line emissons of SiO in"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.08395","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"}