Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...401...81p&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 401, no. 1, p. 81-86.
Astronomy and Astrophysics
Astrophysics
29
Bremsstrahlung, Continuous Spectra, Extragalactic Radio Sources, Far Infrared Radiation, Synchrotron Radiation, Cosmic Rays, Galaxies, Luminosity, Radio Spectra, Star Formation Rate
Scientific paper
The radio-FIR relation has been decomposed into thermal bremsstrahlung-FIR and synchrotron-FIR relation for a sample of 31 galaxies. Both radio emission components are tightly correlated with the FIR emission for early and late-type spiral as well as irregular galaxies. It follows that any mixture of the radio components produces a tight universal radio-FIR relation. At high radio frequencies, thermal bremsstrahlung can dominate the radio emission over a large range of luminosities so that the slope of the radio-FIR relation approaches that of the thermal bremsstrahlung-FIR relation and is therefore close to unity (0.97 +/- 0.02). At lower frequencies, synchrotron emission dominates and the slope approaches that of the synchrotron-FIR ratio which is significantly steeper than unity (1.33 +/- 0.10). The results are consistent with a scenario in which the FIR luminosities of galaxies scale in direct proportion to the star formation rate.
Duric Nebojsa
Price Rob
No associations
LandOfFree
New results on the radio-far-infrared relation for galaxies 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 New results on the radio-far-infrared relation for galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New results on the radio-far-infrared relation for galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1113251