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        Evolution of cosmic star formation in the SCUBA-2 Cosmology Legacy Survey

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        1607.04283v3.pdf (PDF, 2Mb)
        Author
        Bourne, N.
        Dunlop, J. S.
        Merlin, E.
        Parsa, S.
        Schreiber, C.
        Castellano, M.
        Conselice, C. J.
        Coppin, K. E. K.
        Farrah, D.
        Fontana, A.
        Geach, J. E.
        Halpern, M.
        Knudsen, K. K.
        Michalowski, M. J.
        Mortlock, A.
        Santini, P.
        Scott, D.
        Shu, X. W.
        Simpson, C.
        Simpson, J. M.
        Smith, D. J. B.
        Werf, P. van der
        Attention
        2299/19324
        Abstract
        We present a new exploration of the cosmic star-formation history and dust obscuration in massive galaxies at redshifts $0.5z 10^{10}M_\odot$ galaxies at $0.5z 10$. One third of this is accounted for by 450$\mu$m-detected sources, while one fifth is attributed to UV-luminous sources (brighter than $L^\ast_{UV}$), although even these are largely obscured. By extrapolating our results to include all stellar masses, we estimate a total SFRD that is in good agreement with previous results from IR and UV data at $z\lesssim3$, and from UV-only data at $z\sim5$. The cosmic star-formation history undergoes a transition at $z\sim3-4$, as predominantly unobscured growth in the early Universe is overtaken by obscured star formation, driven by the build-up of the most massive galaxies during the peak of cosmic assembly.
        Publication date
        2017-05-21
        Published in
        Monthly Notices of the Royal Astronomical Society
        Published version
        https://doi.org/10.1093/mnras/stx031
        Other links
        http://hdl.handle.net/2299/19324
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