{"paper":{"title":"Galactic HII regions in LAMOST Medium-Resolution Spectroscopic Survey of Nebulae","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Aiyuan Yang, Cheng Li, Hong Wu, Jianjun Chen, Juanjuan Ren, Lin Ma, Shichao Han, Shiming Wen, Tao Jing, Wei Zhang, Yongheng Zhao, Yunning Zhao, Zheng Zheng","submitted_at":"2026-07-30T04:18:31Z","abstract_excerpt":"Based on LAMOST Medium-Resolution Spectroscopic Survey of Nebulae (MRS-N) data and WISE Galactic HII region catalog, we construct a sample of 280 Galactic HII regions and candidates in the Outer Galaxy (80$^{\\circ}$ $\\lesssim$ l $\\lesssim$ 220$^{\\circ}$). Using MRS-N optical spectra, we measure four emission lines (H$\\alpha$, [NII]$\\lambda$6584, [SII]$\\lambda\\lambda$6717,6731) and use line-ratios to spectroscopically confirm 255 HII regions, including 90 previously \"Known\" HII regions and 165 newly classified ones. We measure their $T_{\\rm e}$, $n_{\\rm e}$ and oxygen abundance, and determine d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.27662","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/2607.27662/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"}