{"paper":{"title":"ASCA Observations of Two Ultra-Luminous Compact X-Ray Sources in the Edge-on Spiral Galaxy NGC 4565","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Aya Kubota, Kazuo Makishima, Makoto Tashiro, Tomohisa Ohnishi, Tsunefumi Mizuno","submitted_at":"1999-05-21T05:23:17Z","abstract_excerpt":"The edge-on spiral galaxy NGC 4565 was observed for $\\sim$ 35 ks with ASCA in the 0.5-10 keV energy band. The X-ray emission was dominated by two bright sources, which can be identified with two point-like X-ray sources seen in the ROSAT HRI image. The observed 0.5-10 keV fluxes of these sources, $1.7 \\times 10^{-12} erg/s cm^{-2}$ and $0.7 \\times 10^{-12}erg/s cm^{-2}$, %$1.66 \\times 10^{-12} erg/s cm^{-2}$ %$0.66 \\times 10^{-12} erg/s cm^{-2}$ imply bolometric luminosities of $1.0\\times 10^{40} erg/s$ and $4 \\times 10^{39} erg/s$, respectively. They exhibit similar spectra, which can be expl"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9905277","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"}