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    Infrared Luminous Lyman Break Galaxies: A Population that Bridges LBGs and SCUBA Galaxies

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    Wilson_2005_AJ_634(1)137.pdf (207.0Kb)
    Issue Date
    2005-11-20
    Author
    Huang, J. S.
    Rigopoulou, D.
    Willner, S. P.
    Papovich, Casey J.
    Shu, C.
    Ashby, M. L. N.
    Barmby, P.
    Bundy, K.
    Conselice, C. J.
    Egami, E.
    Pérez-González, P. G.
    Rosenberg, J. L.
    Smith, H. A.
    Wilson, Graham Wallace
    Fazio, G. G.
    Publisher
    American Astronomical Society
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
    Metadata
    Show full item record
    Abstract
    A deep mid- and far-infrared survey in the extended Groth strip (EGS) area gives 3.6 to 8 μm flux densities or upper limits for 253 Lyman break galaxies (LBGs). The LBGs are a diverse population but with properties correlated with luminosity. The LBGs show a factor of 30 range in indicated stellar mass and a factor of 10 range in apparent dust content relative to stellar mass. About 5% of LBGs are luminous at all wavelengths, with powerful emission at rest 6 μm. In the rest 0.9 to 2 μm spectral range these galaxies have stellar spectral slopes with no sign of an AGN power-law component, suggesting that their emission is mainly powered by intensive star formation. Galaxies in this luminous population share the infrared properties of cold Submillimeter Common-User Bolometric Array (SCUBA) sources: both are massive and dusty starburst galaxies at 2 < z < 3; their stellar mass is larger than 1011 M☉. We suggest that these galaxies are the progenitors of present-day giant elliptical galaxies, with a substantial fraction of their stars already formed at z ≈ 3.
    Description
    This is the publisher's version, also available electronically from http://iopscience.iop.org/0004-637X/634/1/137/.
    URI
    http://hdl.handle.net/1808/17697
    DOI
    https://doi.org/10.1086/491697
    Collections
    • Physics & Astronomy Scholarly Works [1744]
    Citation
    Huang, J.-S. et al. (2005). "Infrared Luminous Lyman Break Galaxies: A Population that Bridges LBGs and SCUBA Galaxies." Astrophysical Journal, 634(1):137-141. http://dx.doi.org/10.1086/491697.

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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