Virginia Tech
    • Log in
    View Item 
    •   VTechWorks Home
    • College of Science (COS)
    • Department of Physics
    • Scholarly Works, Department of Physics
    • View Item
    •   VTechWorks Home
    • College of Science (COS)
    • Department of Physics
    • Scholarly Works, Department of Physics
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Herschel-ATLAS: A binary HyLirg pinpointing a cluster of starbursting protoellipticals

    Thumbnail
    View/Open
    Main article (1.034Mb)
    Downloads: 320
    Date
    2013-08
    Author
    Ivison, R. J.
    Swinbank, A. M.
    Smail, I.
    Harris, A. I.
    Bussmann, R. S.
    Cooray, A.
    Cox, P.
    Fu, H.
    Kovacs, A.
    Krips, M.
    Narayanan, D.
    Negrello, M.
    Neri, R.
    Penarrubia, J.
    Richard, J.
    Riechers, D. A.
    Rowlands, K.
    Staguhn, J. G.
    Targett, T. A.
    Amber, S.
    Baker, A. J.
    Bourne, N.
    Bertoldi, F.
    Bremer, M.
    Calanog, J. A.
    Clements, D. L.
    Dannerbauer, H.
    Dariush, A.
    De Zotti, G.
    Dunne, L.
    Eales, S. A.
    Farrah, D.
    Fleuren, S.
    Franceschini, A.
    Geach, J. E.
    George, R. D.
    Helly, J. C.
    Hopwood, R.
    Ibar, E.
    Jarvis, M. J.
    Kneib, J. P.
    Maddox, S.
    Omont, A.
    Scott, D.
    Serjeant, S.
    Smith, M. W. L.
    Thompson, M. A.
    Valiante, E.
    Valtchanov, I.
    Vieira, J.
    van der Werf, P.
    Metadata
    Show full item record
    Abstract
    Panchromatic observations of the best candidate hyperluminous infrared galaxies from the widest Herschel extragalactic imaging survey have led to the discovery of at least four intrinsically luminous z = 2.41 galaxies across an approximate to 100 kpc region-a cluster of starbursting protoellipticals. Via subarcsecond interferometric imaging we have measured accurate gas and star formation surface densities. The two brightest galaxies span similar to 3 kpc FWHM in submillimeter/radio continuum and CO J = 4-3, and double that in CO J = 1-0. The broad CO line is due partly to the multitude of constituent galaxies and partly to large rotational velocities in two counter-rotating gas disks-a scenario predicted to lead to the most intense starbursts, which will therefore come in pairs. The disks have M-dyn of several x 10(11) M-circle dot, and gas fractions of similar to 40%. Velocity dispersions are modest so the disks are unstable, potentially on scales commensurate with their radii: these galaxies are undergoing extreme bursts of star formation, not confined to their nuclei, at close to the Eddington limit. Their specific star formation rates place them greater than or similar to 5x above the main sequence, which supposedly comprises large gas disks like these. Their high star formation efficiencies are difficult to reconcile with a simple volumetric star formation law. N-body and dark matter simulations suggest that this system is the progenitor of a B(inary)-type approximate to 10(14.6)-M-circle dot cluster.
    URI
    http://hdl.handle.net/10919/25843
    Collections
    • Scholarly Works, Department of Physics [873]

    Related items

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

    • Thumbnail

      A Population of z > 2 Far-Infrared Herschel-Spire-Selected Starbursts 

      Casey, C. M.; Berta, S.; Bethermin, M.; Bock, J.; Bridge, C. R.; Burgarella, D.; Chapin, E.; Chapman, S. C.; Clements, D. L.; Conley, A.; Conselice, C. J.; Cooray, A.; Farrah, D.; Hatziminaoglou, E.; Ivison, R. J.; Le Floc'h, E.; Lutz, D.; Magdis, G. E.; Magnelli, B.; Oliver, S. J.; Page, M. J.; Pozzi, F.; Rigopoulou, D.; Riguccini, L.; Roseboom, I. G.; Sanders, D. B.; Scott, D.; Seymour, N.; Valtchanov, I.; Vieira, J. D.; Viero, M.; Wardlow, J. (IOP Publishing Ltd., 2012-12)
      We present spectroscopic observations for a sample of 36 Herschel-Spire 250-500 mu m selected galaxies (HSGs) at 2 < z < 5 from the Herschel Multi-tiered Extragalactic Survey. Redshifts are confirmed as part of a large ...
    • Thumbnail

      The evolution of the dust and gas content in galaxies 

      Santini, P.; Maiolino, R.; Magnelli, B.; Lutz, D.; Lamastra, A.; Causi, G. L.; Eales, S.; Andreani, P.; Berta, S.; Buat, V.; Cooray, A.; Cresci, G.; Daddi, E.; Farrah, D.; Fontana, A.; Franceschini, A.; Genzel, R.; Granato, G.; Grazian, A.; Le Floc'h, E.; Magdis, G. E.; Magliocchetti, M.; Mannucci, F.; Menci, N.; Nordon, R.; Oliver, S.; Popesso, P.; Pozzi, F.; Riguccini, L.; Rodighiero, G.; Rosario, D. J.; Salvato, M.; Scott, D.; Silva, L.; Tacconi, L.; Viero, M.; Wang, L.; Wuyts, S.; Xu, K. (EDP SCIENCES, 2014-02)
      We use deep Herschel observations taken with both PACS and SPIRE imaging cameras to estimate the dust mass of a sample of galaxies extracted from the GOODS-S, GOODS-N and the COSMOS fields. We divide the redshift-stellar ...
    • Thumbnail

      A redshift survey of Herschel far-infrared selected starbursts and implications for obscured star formation 

      Casey, C. M.; Berta, S.; Bethermin, M.; Bock, J.; Bridge, C. R.; Budynkiewicz, J.; Burgarella, D.; Chapin, E.; Chapman, S. C.; Clements, D. L.; Conley, A.; Conselice, C. J.; Cooray, A.; Farrah, D.; Hatziminaoglou, E.; Ivison, R. J.; Le Floc'h, E.; Lutz, D.; Magdis, G. E.; Magnelli, B.; Oliver, S. J.; Page, M. J.; Pozzi, F.; Rigopoulou, D.; Riguccini, L.; Roseboom, I. G.; Sanders, D. B.; Scott, D.; Seymour, N.; Valtchanov, I.; Vieira, J. D.; Viero, M.; Wardlow, J. (IOP Publishing Ltd., 2012-12)
      We present Keck spectroscopic observations and redshifts for a sample of 767 Herschel-SPIRE selected galaxies (HSGs) at 250, 350, and 500 mu m, taken with the Keck I Low Resolution Imaging Spectrometer and the Keck II DEep ...

    If you believe that any material in VTechWorks should be removed, please see our policy and procedure for Requesting that Material be Amended or Removed. All takedown requests will be promptly acknowledged and investigated.

    Virginia Tech | University Libraries | Contact Us
     

     

    VTechWorks

    AboutPoliciesHelp

    Browse

    All of VTechWorksCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    Log inRegister

    Statistics

    View Usage Statistics

    If you believe that any material in VTechWorks should be removed, please see our policy and procedure for Requesting that Material be Amended or Removed. All takedown requests will be promptly acknowledged and investigated.

    Virginia Tech | University Libraries | Contact Us