{"paper":{"title":"Inflow Motions associated with High-mass Protostellar Objects","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"Hyunju Yoo, Jingwen Wu, Jungyeon Cho, Kee-Tae Kim, L. M. Ziurys, Minho Choi, Neal J. Evans II","submitted_at":"2018-05-16T07:48:55Z","abstract_excerpt":"We performed a molecular line survey of 82 high-mass protostellar objects in search for inflow signatures associated with high-mass star formation. Using the H$^{13}$CO$^+$ (1$-$0) line as an optically thin tracer, we detected a statistically significant excess of blue asymmetric line profiles in the HCO$^+$ (1$-$0) transition, but nonsignificant excesses in the HCO$^+$ (3$-$2) and H$_2$CO (2$_{12}$$-$1$_{11}$) transitions. The negative blue excess for the HCN (3$-$2) transition suggests that the line profiles are affected by dynamics other than inflow motion. The HCO$^+$ (1$-$0) transition th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.06174","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"}