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Thermal infrared and nonthermal radio - Remarkable correlation in disks of galaxies
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.
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Citations
Cited by
Star Formation in the Milky Way and Nearby Galaxies
Kennicutt, R. C., & Evans, N. J. (2012) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev-astro-081811-125610 · Cited by 2,902
“A SFR calibration has not been derived from first principles, but observations have repeatedly confirmed a tight correlation between this non-thermal emission and the far-infrared emission of galaxies, which favors its application as a SFR tracer (e.g., Helou et al. 1985; Condon 1992).”
MethodA HIGHLY CONSISTENT FRAMEWORK FOR THE EVOLUTION OF THE STAR-FORMING “MAIN SEQUENCE” FROM z ∼ 0-6
Speagle, J. S., Steinhardt, C. L., Capak, P. L., & Silverman, J. D. (2014) · The Astrophysical Journal Supplement Series · doi:10.1088/0067-0049/214/2/15 · Cited by 1,646
A Redshift Survey of the Submillimeter Galaxy Population
Chapman, S. C., Blain, A. W., Smail, I., & Ivison, R. J. (2005) · The Astrophysical Journal · doi:10.1086/428082 · Cited by 1,163
First‐Year Wilkinson Microwave Anisotropy Probe ( WMAP ) Observations: Foreground Emission
Bennett, C. L., Hill, R. S., Hinshaw, G., Nolta, M. R., Odegard, N., Page, L., Spergel, D. N., Weiland, J. L., Wright, E. L., Halpern, M., et al. (2003) · The Astrophysical Journal Supplement Series · doi:10.1086/377252 · Cited by 991
Metadata
- Authors
- Helou, G., Soifer, B. T., & Rowan-Robinson, M.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 1985-11
- Volume
- 298
- Pages
- L7
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2025969090
- Cited by
- 942
- References
- 0
- FWCI
- 2.57
- Type
- journal article
- Language
- en
- Open access
- closed
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