Herschel-SPIRE, Far-Infrared Properties of Millimetre-Bright and -Faint Radio Galaxies

Abstract

(abridged) We present the first study of the farIR properties of high redshift, radio-selected ULIRGs using deep observations obtained with SPIRE from the Herschel Multi-tiered Extragalactic Survey (HerMES). These galaxies span a large range of 850um fluxes from submillimetre-luminous ~10mJy "SCUBA galaxies -- SMGs" to ~1.5mJy from stacked SCUBA non-detections, thus likely representing a complete distribution of ULIRG spectral energy distributions. From Keck spectroscopic surveys in the Lockman-North field we identified a sample of 31 SMGs and 37 submillimetre-faint, optically-faint radio galaxies (OFRGs), all with radio-inferred IR luminosities >10^12 Lsun. These galaxies were cross-identified with SPIRE 250, 350 and 500um catalogs based on fluxes extracted at 24um positions in the SWIRE survey, yielding a sample of more than half of the galaxies well detected in at least two of the SPIRE bandpasses. By fitting greybody dust models to the SPIRE photometry together with SCUBA 850um measurements, we infer dust temperatures and far-infrared luminosities. The OFRGs detected by SPIRE have median <T_d>= 41+-5 K and the SMGs have <T_d>= 34+-5 K, both in reasonable agreement with previous (pre-Herschel) estimates, reaffirming that the local FIR/radio correlation holds (at least for this subset of high-z ULIRGs) at high redshift. Our observations firstly confirm that a substantial fraction of OFRGs exhibit large infrared luminosities corresponding to SFRs of ~400 Msun/yr. The SPIRE observations secondly confirm the higher dust temperatures for these OFRGs than similarly selected SMGs, consistent with early predictions of the submm-faint radio populations. Our observations also clearly confirm the large infrared luminosities of most SMGs selected with S850um>5 mJy and radio and strong 24um detections, corresponding to SFRs of ~700 Msun/yr.

arXiv comment7 pages, 3 figures, accepted in MNRAS for Herschel special issue

References in corpus (36)

• Herschel Space Observatory - An ESA facility for far-infrared and submillimetre astronomy
• The Herschel-SPIRE instrument and its in-flight performance
• A Deep Sub-millimeter Survey of Lensing Clusters: A New Window on Galaxy Formation and Evolution
• A Redshift Survey of the Submillimeter Galaxy Population
• Radio Properties of Infrared Selected Galaxies in the IRAS 2 Jy Sample
• The Infrared Spectral Energy Distribution of Normal Star-Forming Galaxies: Calibration at Far-Infrared and Submillimeter Wavelengths
• Submillimeter Galaxies at z~2: Evidence for Major Mergers & Constraints on Lifetimes, IMF and CO-H2 Conversion Factor
• High-resolution Millimeter Imaging of Submillimeter Galaxies
• The SCUBA HAlf Degree Extragalactic Survey (SHADES) -- II. Submillimetre maps, catalogue and number counts
• A median redshift of 2.4 for galaxies bright at submillimetre wavelengths
• A Significant Population of Very Luminous Dust-Obscured Galaxies at Redshift z ~ 2
• HerMES: The SPIRE confusion limit
• The far-infrared/radio correlation as probed by Herschel
• The Rest-frame Optical Spectra of SCUBA Galaxies
• HerMES: SPIRE galaxy number counts at 250, 350 and 500 microns
• The Canada-UK Deep Submillimetre Survey: The Survey of the 14-hour field
• Herschel unveils a puzzling uniformity of distant dusty galaxies
• Evidence for extended, obscured starbursts in submm galaxies
• The Hubble Deep Field North SCUBA Super-map III - Optical and near-infrared properties of submillimetre galaxies
• First Insights into the SWIRE Galaxy Populations
• BLAST: the far-infrared/radio correlation in distant galaxies
• A population of hot, dusty ultra-luminous galaxies at z~2
• Deep multi-frequency radio imaging in the Lockman Hole using the GMRT and VLA: I. The nature of the sub-mJy radio population
• Herschel-ATLAS: Dust temperature and redshift distribution of SPIRE and PACS detected sources using submillimetre colours
• The Properties of Sub-mm Galaxies in Hierarchical Models
• The bi-variate luminosity-color distribution of IRAS galaxies, and implications for the high redshift Universe
• Deep multi-frequency radio imaging in the Lockman Hole using the GMRT and VLA: II. The spectral index of submillimetre galaxies
• The Star-Forming Molecular Gas in High Redshift Submillimeter Galaxies
• Confirming a Population of Hot-Dust Dominated, Star Forming Ultraluminous Galaxies at High-Redshift
• The nature of the bright submillimeter galaxy population: a radio pre-selected sample with I>25
• A robust sample of submillimetre galaxies: constraints on the prevalence of dusty, high-redshift starbursts
• Accurate Spectral energy distributions and selection effects for high-redshift dusty galaxies: a new hot population to discover with the Spitzer Space Telescope?
• Far-Infrared Properties of Spitzer-selected Luminous Starbursts
• Infrared Luminosities and Dust Properties of z ~ 2 Dust-Obscured Galaxies
• A Millimetre Survey of Starburst Dominated Ultraluminous Infrared Galaxies at z~2
• The local FIR Galaxy Colour-Luminosity distribution: A reference for BLAST, and Herschel/SPIRE sub-mm surveys

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