NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-16 T03:52:43 PDT
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For refcode 2003A&A...409..907P:
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Copyright by European Southern Observatory (ESO). Reproduced by permission
2003A&A...409..907P The far-infrared/radio correlation in the ISO era The warm and cold far-infrared/radio correlations D. Pierini, C. C. Popescu, R. J. Tuffs and H. J. Volk Received 19 March 2003 / Accepted 29 July 2003 We present the correlation between the far-infrared (FIR) and radio emissions from a composite sample of 72 nearby normal galaxies observed with the ISOPHOT instrument on board the Infrared Space Observatory. The galaxies in the sample have measurements at three FIR wavelengths (60, 100 and 170 {mu}m), which allowed a direct determination of the warm and cold FIR emission components. This is the first time that the correlation has been established for the total FIR luminosity, of which most is carried by the cold dust component predominantly emitting longwards of the spectral coverage of IRAS. The slope of this correlation is slightly non-linear ( 1.10 +/- 0.03). Separate correlations between the warm and cold FIR emission components and the radio emission have also been derived. The slope of the warm FIR/radio correlation was found to be linear ( 1.03 +/- 0.03). For the cold FIR/radio correlation we found a slightly non-linear ( 1.13 +/- 0.04) slope. We qualitatively interpret the correlations in terms of star formation rate and find that both the FIR and radio emissions may be consistent with a non-linear dependence on star formation rate for galaxies not undergoing starburst activity. Keywords: galaxies: spiral, galaxies: stellar content, galaxies: ISM, infrared: galaxies, radio continuum: galaxies
Retrieve 72 NED objects in this reference.
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