1998/09/07 by R. D. Blandford, Roger D. Blandford, Mitchell C. Begelman · 49 citations
Physics and Astronomy · #Accretion (finance) #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Astrophysics and Cosmic Phenomena #Black hole (networking) #Energy flux #Flux (metallurgy) #Mechanics #Physics #Pulsars and Gravitational Waves Research #RADIUS #astro-ph
paper · pdf · doi:10.1046/j.1365-8711.1999.02358.x
published as Mon.Not.Roy.Astron.Soc. 303 (1999) L1 · 5 pages, 2 figures, submitted to Monthly Notices of the Royal Astronomical Society Letters
arxiv created 1998/09/07 · openalex publication_date 1999/02/11 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Gas supplied conservatively to a black hole at rates well below the Eddington rate may not be able to radiate effectively and the net energy flux, including the energy transported by the viscous torque, is likely to be close to zero at all radii. This has the consequence that the gas accretes with positive energy so that it may escape. Accordingly, we propose that only a small fraction of the gas supplied actually falls on to the black hole, and that the binding energy it releases is transported radially outward by the torque so as to drive away the remainder in the form of a wind. This is a generalization of and an alternative to an ‘ADAF’ solution. Some observational implications and possible ways to distinguish these two types of flow are briefly discussed.