Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992xrea.conf..238m&link_type=abstract
In MPI für Extraterrestrische Physik, X Ray Emission from Active Galactic Nuclei and the Cosmic X Ray Background p 238-241 (SEE
Astronomy and Astrophysics
Astronomy
3
Cosmic X Rays, Galactic Radiation, Light (Visible Radiation), Radio Emission, Seyfert Galaxies, Brightness Distribution, Far Infrared Radiation, Heao 2, Infrared Astronomy Satellite, Luminous Intensity, Quasars, Red Shift, Star Formation
Scientific paper
With the aim of deriving the properties of the mechanisms powering emission line galaxies, the x-ray, optical, far infrared (FIR), and radio emission were analyzed in a sample of 103 galaxies, including 44 'normal' star forming galaxies, mostly spirals and irregulars, and 59 Active Galactic Nuclei (AGN) of different classes (quasi stellar objects, Seyfert 1 and Seyfert 2 galaxies). The objects were selected by having been detected both by Einstein and by IRAS (Infrared Astronomy Satellite) at 60 and/or 100 micrometers, discarding the targets for which only upper limits were available. Only those AGN with enough counts to perform spectral fits in the x-ray range were taken. The FIR luminosities were integrated over the 40 to 120 micrometers band by taking the IRAS fluxes at 60 to 100 micrometers. The x-ray luminosities correspond to the Einstein Image Proportional Counter (IPC) bands (generally between 0.5 and 4.0 keV) and were corrected from interstellar absorption. Both FIR and x-ray luminosities were transformed to zero resdshift.
Mas-Hesse Jose Miguel
Mirabel Felix I.
Zimmermann Hans-Ulrich
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