High energy spectrum of hot accretion disks

Conference · Sat Jan 01 04:00:00 EST 1983 · AIP Conf. Proc.; (United States)

OSTI ID:6049626

Eilek, J A; Kafatos, M

One possible thermal state for matter accretion onto a black hole is the two temperature (T/sub i/ >> T/sub e/) model of Shapiro, Lightman and Eardley. This state may arise of strong ion heating and strong radiative electron cooling combine, and if the ion-electron coupling is due to Coulomb-type processes. In such a case, extremely high ion temperatures are predicted for optically thin accretion onto a Kerr black hole. The energy particle and photon spectrum such a flow would produce are investigated. Proton-proton reactions lead to primary electron, positron and ..gamma.. ray production; the primary electrons (with E approx. 100 MeV) interact with the accretion flow to produce secondary X and ..gamma.. rays. The flow is modeled with the standard spatially and optically thin Kerr accretion disk with ..cap alpha..-viscosity and sub-Eddington accretion flow. Is is found that ion temperatures 10/sup 12/K

• Research Organization: New Mexico Inst. of Mining and Tech., Socorro
• OSTI ID: 6049626
• Report Number(s): CONF-830136-
• Conference Information: Journal Name: AIP Conf. Proc.; (United States) Journal Volume: 101
• 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
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BARYON REACTIONS
BLACK HOLES
CHARGED-PARTICLE REACTIONS
COOLING
COSMIC GAMMA SOURCES
COSMIC RAY SOURCES
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
ENERGY SPECTRA
FERMIONS
GAMMA RADIATION
HADRON REACTIONS
HEATING
INTERACTIONS
ION TEMPERATURE
IONIZING RADIATIONS
LEPTONS
LUMINOSITY
MATHEMATICAL MODELS
NUCLEAR REACTIONS
NUCLEON REACTIONS
OPTICAL PROPERTIES
PAIR PRODUCTION
PHYSICAL PROPERTIES
POSITRONS
PROTON REACTIONS
RADIATIONS
SPECTRA
X RADIATION