2-165 keV observations of active galaxies and the diffuse background

Details 2-165 keV observations of active galaxies and the diffuse background 2-165 keV observations of active galaxies and the diffuse background

Jun 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...269..423r&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 269, June 15, 1983, p. 423-437.

Astronomy and Astrophysics

Astronomy

230

Active Galaxies, Background Radiation, Diffuse Radiation, Galactic Radiation, Spaceborne Astronomy, X Ray Sources, Astronomical Photometry, Energy Spectra, Heao 1, Particle Acceleration, Seyfert Galaxies

Scientific paper

HEAO 1 spectral observations of 12 active galaxies in the 12-165 keV and 2-50 keV ranges are reported. The spectra of these galaxies in the 2-165 keV range are well represented by a single power law model; within experimental uncertainties a narrow dispersion in power law index attributable to the individual galaxies is observed, while the 2-165 keV luminosities of these galaxies ranged from 3 x 10 to the 43rd to 3 x 10 to the 45th ergs/s. An apparent universality of the spectral form is found which can be interpreted as due to a common electron distribution with a temperature of tens of keV in the Compton scattering region or as a common nonthermal power-law distribution generating the observed flux through synchrotron-Compton processes. The data indicate that relativistic particles are likely to be responsible for the X-rays from cores of active galaxies through synchroton-Compton processes. In addition, it is noted that only weak number evolution, if any at all, is present in active galaxies.

Affiliated with

Also associated with

No associations

Rating

2-165 keV observations of active galaxies and the diffuse background does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with 2-165 keV observations of active galaxies and the diffuse background, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 2-165 keV observations of active galaxies and the diffuse background will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1504707