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dc.contributor.authorNorris, R.
dc.contributor.authorAfonso, J.
dc.contributor.authorCava, A.
dc.contributor.authorFarrah, D.
dc.contributor.authorHuynh, M.
dc.contributor.authorIvison, R.
dc.contributor.authorJarvis, M.
dc.contributor.authorLacy, M.
dc.contributor.authorMao, M.
dc.contributor.authorMaraston, C.
dc.contributor.authorMauduit, J.
dc.contributor.authorMiddelberg, E.
dc.contributor.authorOliver, S.
dc.contributor.authorSeymour, Nick
dc.contributor.authorSurace, J.
dc.date.accessioned2017-01-30T11:14:56Z
dc.date.available2017-01-30T11:14:56Z
dc.date.created2016-01-18T20:00:47Z
dc.date.issued2011
dc.identifier.citationNorris, R. and Afonso, J. and Cava, A. and Farrah, D. and Huynh, M. and Ivison, R. and Jarvis, M. et al. 2011. Deep Spitzer observations of infrared-faint radio sources: High-redshift radio-loud active galactic nuclei? Astrophysical Journal. 736 (1).
dc.identifier.urihttp://hdl.handle.net/20.500.11937/9787
dc.identifier.doi10.1088/0004-637X/736/1/55
dc.description.abstract

Infrared-faint radio sources (IFRSs) are a rare class of objects which are relatively bright at radio wavelengths but very faint at infrared and optical wavelengths. Here we present sensitive near-infrared observations of a sample of these sources taken as part of the Spitzer Extragalactic Representative Volume Survey. Nearly all the IFRSs are undetected at a level of ~1 µJy in these new deep observations, and even the detections are consistent with confusion with unrelated galaxies. A stacked image implies that the median flux density is S3.6 µm ~ 0.2 µJy or less, giving extreme values of the radio-infrared flux density ratio. Comparison of these objects with known classes of object suggests that the majority are probably high-redshift radio-loud galaxies, possibly suffering from significant dust extinction. © 2011. The American Astronomical Society. All rights reserved.

dc.titleDeep Spitzer observations of infrared-faint radio sources: High-redshift radio-loud active galactic nuclei?
dc.typeJournal Article
dcterms.source.volume736
dcterms.source.number1
dcterms.source.issn0004-637X
dcterms.source.titleAstrophysical Journal
curtin.departmentDepartment of Physics and Astronomy
curtin.accessStatusOpen access via publisher


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