Consequences of Gravitational Lensing for Gamma Radiation from 3C273
Abstract
The absorption of gamma radiation by photon-photon interactions in the core region of 3C273 has been reconsidered because 3C273 may be gravitationally lensed by a galaxy along the line of sight to the quasar. It is shown that the gamma radiation detected by COS-B can escape from the same compact core as the quasar's x-ray flux if the intensification of the gravitational lens is about 100.
- Publication:
-
Gravitational Lensing
- Pub Date:
- 1990
- DOI:
- 10.1007/BFb0009250
- Bibcode:
- 1990LNP...360..163M
- Keywords:
-
- Gamma Ray Absorption;
- Gravitational Lenses;
- Particle Interactions;
- Photons;
- Quasars;
- Cos-B Satellite;
- Galaxies;
- Optical Thickness;
- Astrophysics