Relevance of the Eddington limit to thick accretion disks

Conference · Sun Jan 01 04:00:00 EST 1984 · Adv. Space Res.; (United States)

OSTI ID:6207360

Nityananda, R; Narayan, R

Thick accretion disks with narrow funnels around massive black holes are considered promising models for active galactic nuclei. These models assumed a supercritical accretion rate and emit collimated beams with super-Eddington luminosities. Approximate calculations of the interaction between the emerging radiation and the walls for an optically thin funnel are made. The results are sensitive to the sound velocity and to the viscosity parameter. They suggest that a significant particle luminosity can accompany the radiation in the super-Eddington case. By applying an Eddington type limit based on mechanical equilibrium to a suitably chosen interior surface in the disk, it is found that energy transport, if radiative, can strongly limit the efficiency of these models. 16 references.

• Research Organization: Raman Research Inst., Bangalore, India
• OSTI ID: 6207360
• Report Number(s): CONF-8307144-
• Conference Information: Journal Name: Adv. Space Res.; (United States) Journal Volume: 3
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
640103 -- Astrophysics & Cosmology-- Quasi-Stellar
Radio
& X-Ray Sources-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCRETION DISKS
BLACK HOLES
EDDINGTON THEORY
GALAXY NUCLEI
LUMINOSITY
MATHEMATICAL MODELS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RADIATION TRANSPORT