X-ray and. gamma. -rays from active galaxies
Conference
·
· AIP Conf. Proc.; (United States)
OSTI ID:6095328
Photon-photon pair production in active galaxies is considered and the concept of the annihilation efficiency, the efficiency for the conversion of > 511 keV continuum luminosity into positron annihilation luminosity, is introduced. Equations that give a source's annihilation luminosity and 511 keV flux as a function of its size, continuum luminosity and distance are developed. These are applied to the available X-ray and ..gamma..-ray data on active galaxies in order to make specific predictions. Efficiencies as high as > 6% and fluxes up to 8 x 10/sup -4/ ph/cm/sup 2/-sec result. While the latter are below present limits, they are within the reach of advanced instruments now in development. 38 references, 1 figure, 1 table.
- Research Organization:
- Univ. of California, La Jolla
- OSTI ID:
- 6095328
- Report Number(s):
- CONF-830136-
- Conference Information:
- Journal Name: AIP Conf. Proc.; (United States) Journal Volume: 101
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640103* -- Astrophysics & Cosmology-- Quasi-Stellar
Radio
& X-Ray Sources-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANNIHILATION
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BASIC INTERACTIONS
COSMIC RAY SOURCES
COSMIC X-RAY SOURCES
ELECTROMAGNETIC INTERACTIONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
FERMIONS
GALAXIES
GAMMA RADIATION
INTERACTIONS
IONIZING RADIATIONS
LEPTONS
LUMINOSITY
MASSLESS PARTICLES
OPTICAL PROPERTIES
PAIR PRODUCTION
PHOTONS
PHYSICAL PROPERTIES
POSITRONS
RADIATIONS
X RADIATION
Radio
& X-Ray Sources-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANNIHILATION
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BASIC INTERACTIONS
COSMIC RAY SOURCES
COSMIC X-RAY SOURCES
ELECTROMAGNETIC INTERACTIONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
FERMIONS
GALAXIES
GAMMA RADIATION
INTERACTIONS
IONIZING RADIATIONS
LEPTONS
LUMINOSITY
MASSLESS PARTICLES
OPTICAL PROPERTIES
PAIR PRODUCTION
PHOTONS
PHYSICAL PROPERTIES
POSITRONS
RADIATIONS
X RADIATION