Astrophysical gamma-ray production by inverse Compton interactions of relativistic electrons. II. Constraints on compton emission models for NGC 4151, NP 0532, and PSR 0833--45 from gamma-ray data

Journal Article · Sat Mar 15 00:00:00 EST 1980 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/157821· OSTI ID:5259284

Schlickeiser, R

An inverse Compton origin of the ..gamma..-ray emission of point sources reveals itself by a continuous steepening of the differential ..gamma..-ray spectrum with increasing energy due to higher order effects in the Klein-Nishina cross section. It is shown that the observed breaks in the ..gamma..-ray spectra of the Vela pulsar PSR 0833--45, the Crab pulsar NP 0532, and the Seyfert galaxy NGC 4151 can be explained quite naturally by this effect. The implied constraints on the mean energy of the target photon gases allow us to discuss the place of origin of the observed ..gamma..-rays.

• Research Organization: Enrico Fermi Institute, University of Chicago
• OSTI ID: 5259284
• Journal Information: Astrophys. J.; (United States), Vol. 236:3
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC GAMMA SOURCES
COMPTON EFFECT
PULSARS
GAMMA SPECTRA
SEYFERT GALAXIES
ELECTRONS
EMISSION
GAMMA RADIATION
INVERSE SCATTERING PROBLEM
PHOTONS
BASIC INTERACTIONS
COSMIC RADIO SOURCES
COSMIC RAY SOURCES
ELASTIC SCATTERING
ELECTROMAGNETIC INTERACTIONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
FERMIONS
GALAXIES
INTERACTIONS
IONIZING RADIATIONS
LEPTONS
MASSLESS PARTICLES
RADIATIONS
SCATTERING
SPECTRA
640103* - Astrophysics & Cosmology- Quasi-Stellar
Radio
& X-Ray Sources- (-1987)