view Abstract Citations (1019) References (26) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Thermal infrared and nonthermal radio : remarkable correlation in disks of galaxies. Helou, G. ; Soifer, B. T. ; Rowan-Robinson, M. Abstract A tight, linear correlation is established between the far-infrared flux measured by IRAS and the nonthermal radio flux density (at 1.4 GHz) from disks of spiral galaxies. This correlation defines a ratio of infrared to radio fluxes that is characteristic of star formation activity. Galaxies with nuclear starbursts seem to follow the correlation. If the far-infrared is reradiated luminosity from young massive stars, then the supernova remnants alone account for less than 10 percent of the radio emission. These results indicate a close coupling between dust heating and cosmic-ray generation and confinement in a wide range of conditions. Publication: The Astrophysical Journal Pub Date: November 1985 DOI: 10.1086/184556 Bibcode: 1985ApJ...298L...7H Keywords: Far Infrared Radiation; Nonthermal Radiation; Radio Sources (Astronomy); Spiral Galaxies; Stellar Evolution; Disks; Radio Emission; Virgo Galactic Cluster; Astrophysics full text sources ADS | data products SIMBAD (12) NED (9)

Thermal infrared and nonthermal radio - Remarkable correlation in disks of galaxies