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No Evidence for Evolution in the Far-infrared–Radio Correlation out to z ~ 2 in the Extended Chandra Deep Field South

Mao, Minnie Y. and Huynh, Minh T. and Norris, Ray P. and Dickinson, Mark and Frayer, Dave T. and Helou, George and Monkiewicz, Jacqueline A. (2011) No Evidence for Evolution in the Far-infrared–Radio Correlation out to z ~ 2 in the Extended Chandra Deep Field South. Astrophysical Journal, 731 (2). Art. No. 79. ISSN 0004-637X. https://resolver.caltech.edu/CaltechAUTHORS:20110524-080345301

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Abstract

We investigate the 70 μm far-infrared-radio correlation (FRC) of star-forming galaxies in the Extended Chandra Deep Field South (ECDFS) out to z > 2. We use 70 μm data from the Far-Infrared Deep Extragalactic Legacy Survey (FIDEL), which comprises the most sensitive (~0.8 mJy rms) and extensive far-infrared deep field observations using MIPS on the Spitzer Space Telescope, and 1.4 GHz radio data (~8 μJy beam^(–1) rms) from the Very Large Array. In order to quantify the evolution of the FRC, we use both survival analysis and stacking techniques, which we find give similar results. We also calculate the FRC using total infrared luminosity and rest-frame radio luminosity, q TIR, and find that q TIR is constant (within 0.22) over the redshift range 0-2. We see no evidence for evolution in the FRC at 70 μm, which is surprising given the many factors that are expected to change this ratio at high redshifts.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1088/0004-637X/731/2/79DOIArticle
http://iopscience.iop.org/0004-637X/731/2/79PublisherArticle
ORCID:
AuthorORCID
Dickinson, Mark0000-0001-5414-5131
Frayer, Dave T.0000-0003-1924-1122
Helou, George0000-0003-3367-3415
Additional Information:© 2011 The American Astronomical Society. Received 2010 November 2; accepted 2011 February 15; published 2011 March 25. We thank our anonymous referee whose insightful comments helped improve this paper. We thank Neal Miller for providing the radio data. M.Y.M. was supported by the IPAC Visiting Graduate Research Fellowship Program for this work. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc.
Group:Infrared Processing and Analysis Center (IPAC)
Funders:
Funding AgencyGrant Number
IPAC Visiting Graduate Student Fellowship ProgramUNSPECIFIED
Subject Keywords:Galaxy: evolution; Galaxy: formation; infrared: galaxies; radio continuum: galaxies
Issue or Number:2
Classification Code:PACS: 98.62.Ai; 98.62.Py; 98.62.Qz; 98.85.Gn; 98.85.Bh
Record Number:CaltechAUTHORS:20110524-080345301
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20110524-080345301
Official Citation:No Evidence for Evolution in the Far-infrared–Radio Correlation out to z ~ 2 in the Extended Chandra Deep Field South Minnie Y. Mao, Minh T. Huynh, Ray P. Norris, Mark Dickinson, Dave Frayer, George Helou and Jacqueline A. Monkiewicz doi: 10.1088/0004-637X/731/2/79
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:23770
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:24 May 2011 15:57
Last Modified:03 Oct 2019 02:49

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