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    The HerMES submillimetre local and low-redshift luminosity functions*

    239350_239350.pdf (3.370Mb)
    Access Status
    Open access
    Authors
    Marchetti, L.
    Vaccari, M.
    Franceschini, A.
    Arumugam, V.
    Aussel, H.
    Béthermin, M.
    Bock, J.
    Boselli, A.
    Buat, V.
    Burgarella, D.
    Clements, D.
    Conley, A.
    Conversi, L.
    Cooray, A.
    Dowell, C.
    Farrah, D.
    Feltre, A.
    Glenn, J.
    Griffin, M.
    Hatziminaoglou, E.
    Heinis, S.
    Ibar, E.
    Ivison, R.
    Nguyen, H.
    O'Halloran, B.
    Oliver, S.
    Page, M.
    Papageorgiou, A.
    Pearson, C.
    Pérez-Fournon, I.
    Pohlen, M.
    Rigopoulou, D.
    Roseboom, I.
    Rowan-Robinson, M.
    Schulz, B.
    Scott, D.
    Seymour, Nick
    Shupe, D.
    Smith, A.
    Symeonidis, M.
    Valtchanov, I.
    Viero, M.
    Wang, L.
    Wardlow, J.
    Xu, C.
    Zemcov, M.
    Date
    2015
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Marchetti, L. and Vaccari, M. and Franceschini, A. and Arumugam, V. and Aussel, H. and Béthermin, M. and Bock, J. et al. 2015. The HerMES submillimetre local and low-redshift luminosity functions*. Monthly Notices of the Royal Astronomical Society. 456 (2): pp. 1999-2023.
    Source Title
    Monthly Notices of the Royal Astronomical Society
    DOI
    10.1093/mnras/stv2717
    ISSN
    0035-8711
    School
    Department of Physics and Astronomy
    Remarks

    This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

    URI
    http://hdl.handle.net/20.500.11937/8187
    Collection
    • Curtin Research Publications
    Abstract

    We used wide-area surveys over 39 deg2 by the HerMES (Herschel Multi-tiered Extragalactic Survey) collaboration, performed with the Herschel Observatory SPIRE multiwavelength camera, to estimate the low-redshift, 0.02 < z < 0.5, monochromatic luminosity functions (LFs) of galaxies at 250, 350 and 500 μm. Within this redshift interval, we detected 7087 sources in five independent sky areas, ~40 per cent of which have spectroscopic redshifts, while for the remaining objects photometric redshifts were used. The SPIRE LFs in different fields did not show any field-to-field variations beyond the small differences to be expected from cosmic variance. SPIRE flux densities were also combined with Spitzer photometry and multiwavelength archival data to perform a complete spectral energy distribution fitting analysis of SPIRE detected sources to calculate precise k-corrections, as well as the bolometric infrared (IR; 8–1000 μm) LFs and their low-z evolution from a combination of statistical estimators. Integration of the latter prompted us to also compute the local luminosity density and the comoving star formation rate density (SFRD) for our sources, and to compare them with theoretical predictions of galaxy formation models. The LFs show significant and rapid luminosity evolution already at low redshifts, 0.02 < z < 0.2, with L*IR∝(1+z)6.0±0.4 and Φ*IR∝(1+z)−2.1±0.4, L*250∝(1+z)5.3±0.2 and Φ*250∝(1+z)−0.6±0.4 estimated using the IR bolometric and the 250 μm LFs, respectively. Converting our IR LD estimate into an SFRD assuming a standard Salpeter initial mass function and including the unobscured contribution based on the UV dust-uncorrected emission from local galaxies, we estimate an SFRD scaling of SFRD0 + 0.08z, where SFRD0 ≃ (1.9 ± 0.03) × 10−2 [M⊙ Mpc−3] is our total SFRD estimate at z ~ 0.02.

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