{"paper":{"title":"Understanding the Ly{\\alpha} Emission Observed by the Solar Disk Imager Aboard the Advanced Space-based Solar Observatory","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Beili Ying, Guanglu Shi, Hui Li, Jiahui Shan, Jianchao Xue, Jun Tian, Kaifan Ji, Lei Lu, Li Feng, Ping Zhang, Shuting Li, Weiqun Gan, Yiliang Li, Ying Li, Zhengyuan Tian","submitted_at":"2025-05-22T04:34:21Z","abstract_excerpt":"The H I Lyman-alpha (Ly$\\alpha$) emission, with a wavelength of 1216 \\r{A}, is the brightest solar ultraviolet (UV) line. However, comprehensive observations of the Ly$\\alpha$ emission line across the full solar disk remain limited. As part of the ASO-S mission, the Solar Disk Imager (SDI) has successfully captured full-disk images in the Ly$\\alpha$ band. Gaussian fitting of SDI's spectral response function (SRF) yields a full width at half maximum (FWHM) of approximately 85 \\r{A}, which is significantly broader than the distance of Si III line at 1206 \\r{A} and the Ly$\\alpha$ line. Thus, the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.16218","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/2505.16218/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"}