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Accretion and nuclear activity of quiescent supermassive black holes. II. Optical study and interpretation

Soria, Roberto; Graham, Alister; Fabbiano, G; Baldi, A; Elvis, M; Jerjen, Helmut; Pellegrini, S; Siemiginowska, A

Description

Our X-ray study of the nuclear activity in a new sample of six quiescent early-type galaxies, as well as in a larger sample from the literature, confirmed (Paper I) that the Bondi accretion rate of diffuse hot gas is not a good indicator of the SMBH X-ray luminosity. Here we suggest that a more reliable estimate of the accretion rate must include the gas released by the stellar population inside the sphere of influence of the SMBH, in addition to the Bondi inflow of hot gas across that surface....[Show more]

CollectionsANU Research Publications
Date published: 2006
Type: Journal article
URI: http://hdl.handle.net/1885/22156
Source: Astrophysical Journal, The
DOI: 10.1086/499935

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