Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...218...67v&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 218, no. 1-2, July 1989, p. 67-70.
Astronomy and Astrophysics
Astronomy
90
Disk Galaxies, Infrared Sources (Astronomy), Radio Galaxies, Spiral Galaxies, Supernova Remnants, Supernovae, Correlation, Far Infrared Radiation, Flux Density, Interstellar Magnetic Fields, Radio Emission
Scientific paper
A theory for the correlation of the nonthermal radio continuum emission with the FIR emission from disk galaxies is proposed which assumes that the source strengths for relativistic electrons (responsible for the radio synchrotron emission) and energetic photons (responsible for the FIR emission) are both proportional to the SN rate, and that the energy source for the FIR emission communicates instantaneously with the radiating dust grains. Over the volume surrounding the electron sources within which those particles lose their energy (due to combined inverse Compton and synchrotron loss), each galaxy is shown to act as a calorimeter for these particles. A correlation between the nonthermal radio emission and the thermal X-ray emission is predicted which would prove that SN remnants are the basic source of cosmic rays for energies of less than about 10 to the 15th eV.
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