{"paper":{"title":"Advection-Dominated Accretion Model of Sagittarius A$^*$ and Other Accreting Black Holes","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Insu Yi, Ramesh Narayan, Rohan Mahadevan","submitted_at":"1995-09-27T13:39:06Z","abstract_excerpt":"Viscous rotating accretion flows around black holes become advection-dominated when the accretion rate $\\dot M$ is sufficiently low. Most of the accretion energy in such flows is stored within the gas and advected radially inward. The temperature is therefore very high, and much of the radiation comes out in hard X-rays and $\\gamma$-rays. We have constructed an advection-dominated accretion flow model for the Galactic Center source Sagittarius A$^*$. The model consists of a $7\\times10^5M_\\odot$ black hole accreting at $\\dot M=1.2\\times10^{-5}\\alpha\\, M_\\odot{\\rm yr^{-1}}$, where $\\alpha$ is th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9509140","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"}