University of Hertfordshire Research Archive

        JavaScript is disabled for your browser. Some features of this site may not work without it.

        Browse

        All of UHRABy Issue DateAuthorsTitlesThis CollectionBy Issue DateAuthorsTitles

        Arkivum Files

        My Downloads
        View Item 
        • UHRA Home
        • University of Hertfordshire
        • Research publications
        • View Item
        • UHRA Home
        • University of Hertfordshire
        • Research publications
        • View Item

        Herschel-PACS observations of [O I]63 um towards submillimetre galaxies at z~1

        View/Open
        Final Accepted Version (PDF, 459Kb)
        Author
        Coppin, Kristen
        Danielson, A. L. R.
        Geach, J. E.
        Hodge, J. A.
        Swinbank, A.M.
        Wardlow, J. L.
        Bertoldi, F.
        Biggs, A.
        Brandt, W.N.
        Caselli, P.
        Chapman, S. C.
        Dannerbauer, H.
        Dunlop, James S.
        Greve, T.R.
        Hamann, F.
        Ivison, R. J.
        Karim, A.
        Knudsen, K. K.
        Menten, K. M.
        Schinnerer, E.
        Smail, Ian
        Spaans, M.
        Walter, F.
        Webb, T. M. A.
        van der Werf, P. P.
        Attention
        2299/10785
        Abstract
        We present Herschel-PACS spectroscopy of the [O I]63 um far-infrared cooling line from a sample of six unlensed and spectroscopically confirmed 870 um selected submillimetre (submm) galaxies (SMGs) at 1.1 <z <1.6 from the LABOCA Extended Chandra Deep Field South (ECDFS) Submm Survey (LESS). This is the first survey of [O I]63 um, one of the main photodissociation region (PDR) cooling lines, in SMGs. New high-resolution Atacama Large Millimetre Array (ALMA) interferometric 870 mu m continuum imaging confirms that these six Herschel-targeted SMG counterparts are bona fide sources of submm emission. We detect [O I]63 um in two SMGs with an SNR greater than or similar to 3, tentatively detect [O I]63 um in one SMG and constrain the line flux for the non-detections. We also exploit the combination of submm continuum photometry from 250 to 870 um and our new PACS continuum measurements to constrain the far-infrared luminosity, LFIR, in these SMGs to less than or similar to 30 per cent. We find that SMGs do not show a deficit in their [O I]63 um-to-far-infrared (FIR) continuum luminosity ratios (with ratios ranging from similar or equal to 0.5 to 1.5 per cent), similar to what was seen previously for the [C II]158 um-to-FIR ratios in SMGs. These observed ratios are about an order of magnitude higher than what is seen typically for local ultraluminous infrared galaxies (ULIRGs), which adds to the growing body of evidence that SMGs are not simply scaled up versions of local ULIRGs. Rather, the PDR line-to-L-FIR ratios suggest that the star formation modes of SMGs are likely more akin to that of local normal (lower-luminosity) star-forming galaxies, with the bulk of the star formation occurring in extended galaxy-scale (similar to kpc) regions. These observations represent the first step towards a census of the major PDR cooling lines in typical SMGs that will be attainable with ALMA, enabling detailed modelling to probe the global properties of the star formation and the evolutionary status of SMGs.
        Publication date
        2012
        Published in
        Monthly Notices of the Royal Astronomical Society
        Published version
        https://doi.org/10.1111/j.1365-2966.2012.21977.x
        Other links
        http://hdl.handle.net/2299/10785
        Relations
        School of Physics, Astronomy and Mathematics
        Metadata
        Show full item record

        Related items

        Showing items related by title, author, creator and subject.

        • The H alpha galaxy survey. I. The galaxy sample, H alpha narrow-band observations and star formation parameters for 334 galaxies 

          James, P.A.; Shane, N.S.; Beckman, J.E.; Cardwell, A.; Collins, C.A.; Etherton, J.; de Jong, R.S.; Fathi, K.; Knapen, J.; Peletier, R.F.; Percival, S.M.; Pollacco, D.L.; Seigar, M.S.; Stedman, S. (2004)
          We discuss the selection and observations of a large sample of nearby galaxies, which we are using to quantify the star formation activity in the local Universe. The sample consists of 334 galaxies across all Hubble types ...
        • Abundant molecular gas in tidal dwarf galaxies: On-going galaxy formation 

          Braine, J.; Duc, P.A.; Lisenfeld, U.; Charmandaris, V.; Vallejo, O.; Leon, S.; Brinks, E. (2001-10)
          We investigate the process of galaxy formation as can be observed in the only currently forming galaxies { the so-called Tidal Dwarf Galaxies, hereafter TDGs { through observations of the molecular gas detected via its CO ...
        • The James Clerk Maxwell Telescope Nearby Galaxies Legacy Survey. II. Warm molecular gas and star formation in three field spiral galaxies 

          Warren, B.E.; Wilson, C.D.; Israel, F.P.; Serjeant, S.; Bendo, G.; Brinks, E.; Clements, D.; Irwin, J.; Knapen, J.; Leech, J.; Matthews, H.; Muhle, S.; Mortimer, A.M.J.; Petitpas, G.; Sinukoff, E.; Spekkens, K.; Tan, B.K.; Tilanus, R.P.J.; Usero, A.; van der Werf, P.; Vlahakis, C.; Wiegert, T.; Zhu, M. (2010)
          We present the results of large-area 12CO J = 3-2 emission mapping of three nearby field galaxies, NGC 628, NGC 3521, and NGC 3627, completed at the James Clerk Maxwell Telescope as part of the Nearby Galaxies Legacy Survey. ...
        Keep in touch

        © 2019 University of Hertfordshire

        I want to...

        • Apply for a course
        • Download a Prospectus
        • Find a job at the University
        • Make a complaint
        • Contact the Press Office

        Go to...

        • Accommodation booking
        • Your student record
        • Bayfordbury
        • KASPAR
        • UH Arts

        The small print

        • Terms of use
        • Privacy and cookies
        • Criminal Finances Act 2017
        • Modern Slavery Act 2015
        • Sitemap

        Find/Contact us

        • T: +44 (0)1707 284000
        • E: ask@herts.ac.uk
        • Where to find us
        • Parking
        • hr
        • qaa
        • stonewall
        • AMBA
        • ECU Race Charter
        • disability confident
        • AthenaSwan