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Extending the infrared radio correlation

Boyle, B. J. and Cornwell, T. J. and Middelberg, E. and Norris, R. P. and Appleton, P. N. and Smail, Ian (2007) Extending the infrared radio correlation. Monthly Notices of the Royal Astronomical Society, 376 (3). pp. 1182-1188. ISSN 0035-8711. doi:10.1111/j.1365-2966.2007.11509.x.

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Co-addition of deep (rms ∼ 30 μJy) 20-cm data obtained with the Australia Telescope Compact Array at the location of Spitzer Wide Field Survey (SWIRE) sources has yielded statistics of radio source counterparts to faint 24-μm sources in stacked images with rms < 1 μJy. We confirm that the infrared–radio correlation extends to f_(24 μm) = 100 μJy but with a significantly lower coefficient, f_(20 cm) = 0.039f_(24 μm) [q_(24) = log (f_(24 μm)/f20 cm) = 1.39 ± 0.02] than hitherto reported. We postulate that this may be due to a change in the mean q_(24) value ratio for objects with f_(24 μm) < 1 mJy.

Item Type:Article
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Norris, R. P.0000-0002-4597-1906
Appleton, P. N.0000-0002-7607-8766
Smail, Ian0000-0003-3037-257X
Additional Information:© 2007 The Authors. Journal compilation © 2007 RAS. Accepted 2007 January 14. Received 2007 January 13; in original form 2006 November 30. Radio data were obtained by the Australia Telescope Compact Array, operated by CSIRO Australia Telescope National Facility. IRS acknowledges support from the Royal Society.
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Subject Keywords:galaxies : starburst; infrared : galaxies; radio continuum : general
Issue or Number:3
Record Number:CaltechAUTHORS:20091029-095449597
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:16518
Deposited By: Tony Diaz
Deposited On:02 Nov 2009 18:34
Last Modified:08 Nov 2021 23:27

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