Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989esasp.290..531v&link_type=abstract
In ESA, Infrared Spectroscopy in Astronomy p 531-534 (SEE N90-19084 11-89)
Astronomy and Astrophysics
Astronomy
1
Correlation, Disk Galaxies, Far Infrared Radiation, Radio Sources (Astronomy), Cosmic Rays, Infrared Spectra, Radio Emission, Supernova Remnants, Supernovae
Scientific paper
A theory for the correlation of the nonthermal radio continuum emission with the Far Infrared (FIR) emission from disk galaxies is proposed. The spatially integrated emission from each galaxy is considered. It is supposed that the energy source for the FIR emission is essentially instantaneously communicating to the radiating dust grains. The radio luminosity is calculated. It is shown that the net dependence of the radio emission on the spatial average of the magnetic field strength B is rather weak. A correlation between the nonthermal radio emission and the thermal X-ray emission from elliptical galaxies is predicted. Its existence prove that supernova remnants are the basic source of cosmic rays for energies lower or equal to 10 to the 15th power eV.
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