SIMBAD references

2018MNRAS.477.3552O - Mon. Not. R. Astron. Soc., 477, 3552-3566 (2018/July-1)

Far-infrared-radio correlation and magnetic field strength in star-forming early-type galaxies.

OMAR A. and PASWAN A.

Abstract (from CDS):

A tight far-infrared-radio correlation similar to that in star-forming late-type galaxies is also indicated in star-forming blue early-type galaxies, in which the nuclear optical-line emissions are primarily due to star-forming activities without a significant contribution from active galactic nuclei. The average value of far-infrared to 1.4 GHz radio flux ratio commonly represented as the q parameter is estimated to be 2.35 ± 0.05 with a scatter of 0.16 dex. The average star formation rate estimated using 1.4 GHz radio continuum is ∼6 M yr–1 in good agreement with those estimated using far-infrared and H α luminosities. The radio emission is detected mainly from central region that could be associated with the star-forming activities, most likely triggered by recent tidal interactions. The average thermal contribution to total radio flux is estimated to be ∼12 per cent. The average value of the magnetic field strengths in the star-forming early-type galaxies is estimated to be 12+11–4µG. These magnetic fields are very likely generated via fast amplification in small-scale turbulent dynamos acting in the starbursting regions.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: elliptical and lenticular, cD - galaxies: magnetic field - galaxies: star formation - radio continuum: galaxies

Simbad objects: 55

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