Metagalactic Inverse Compton Effect and Cosmic X-Ray Background
نویسندگان
چکیده
منابع مشابه
Bridging the cosmic infrared background to the X-ray background
We estimate the contribution of AGNs and of their host galaxies to the infrared background. We use the luminosity function and evolution of AGNs recently determined by the hard X-ray surveys, and new Spectral Energy Distributions bridging the X-ray and the infrared emission, divided in intervals of absorption. These two ingredients allow us to determine the contribution of AGNs to the infrared ...
متن کاملConnecting the cosmic infrared background to the X-ray background
We estimate the contribution of AGNs and of their host galaxies to the infrared background. We use the luminosity function and evolution of AGNs recently determined by the hard X-ray surveys, and new Spectral Energy Distributions connecting the X-ray and the infrared emission, divided in intervals of absorption. These two ingredients allow us to determine the contribution of AGNs to the infrare...
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We study synchrotron self-inverse Compton radiation from a reverse-shocked fireball. If the inverse Compton process dominates the cooling of shocked electrons, an X-ray flare produced by the first order Compton scattering would emerge in the very early afterglow phase, with the bulk of the shock energy radiated in the second order scattering component at 10-100 MeV. The dominance of inverse Com...
متن کاملActive Galactic Nuclei and the Cosmic X-Ray Background
Active Galactic Nuclei (AGNs) are the most luminous objects in the Universe (besides Gamma-Ray Bursts). Typical spatial scales for these objects are estimated from time variability, giving sizes of around one parsec (Clavel al. 1991, Peterson et al. 1992), similar to our solar system, but with typical luminosities 1011 larger than the Sun. It is believed that their energy comes from the inflow ...
متن کاملThe Energy Spectrum of Primary Cosmic Ray Electrons in Clusters of Galaxies and Inverse Compton Emission
Models for the evolution of the integrated energy spectrum of primary cosmic ray electrons in clusters of galaxies have been calculated, including the effects of losses due to inverse Compton (IC), synchrotron, and bremsstrahlung emission, and Coulomb losses to the intracluster medium (ICM). The combined time scale for these losses reaches a maximum of ∼3×109 yr for electrons with a Lorentz fac...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 1969
ISSN: 0033-068X
DOI: 10.1143/ptp.42.1129