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AN ALMA SURVEY OF S...
AN ALMA SURVEY OF SUBMILLIMETER GALAXIES IN THE EXTENDED CHANDRA DEEP FIELD SOUTH: THE REDSHIFT DISTRIBUTION AND EVOLUTION OF SUBMILLIMETER GALAXIES
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- Simpson, J. M. (författare)
- Durham University
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- Swinbank, A. M. (författare)
- Durham University
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- Smail, I. (författare)
- Durham University
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- Alexander, D. M. (författare)
- Durham University
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- Brandt, W. N. (författare)
- Pennsylvania State University
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- Bertoldi, F. (författare)
- Universität Bonn,University of Bonn
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- De Breuck, C. (författare)
- European Southern Observatory (ESO)
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- Chapman, S. C. (författare)
- Dalhousie University
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- Coppin, K. E. K. (författare)
- University of Hertfordshire
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- da Cunha, E. (författare)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Danielson, A. L. R. (författare)
- Durham University
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- Dannerbauer, H. (författare)
- Universität Wien,University of Vienna
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- Greve, T. R. (författare)
- University College London (UCL)
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- Hodge, J. A. (författare)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Ivison, R. J. (författare)
- University of Edinburgh
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- Karim, A. (författare)
- Universität Bonn,University of Bonn
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- Knudsen, Kirsten Kraiberg, 1976 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Poggianti, B. M. (författare)
- Istituto nazionale di astrofisica (INAF)
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- Schinnerer, E. (författare)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Thomson, A. P. (författare)
- Durham University
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- Walter, F. (författare)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Wardlow, J. L. (författare)
- Niels Bohr Institute,University of California at Irvine (UCI)
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- Weiss, A. (författare)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- van der Werf, P.P. (författare)
- Universiteit Leiden (UL),Leiden University (UL)
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(creator_code:org_t)
- 2014-05-30
- 2014
- Engelska.
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Ingår i: Astrophysical Journal. - : American Astronomical Society. - 1538-4357 .- 0004-637X. ; 788:2
- Relaterad länk:
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Abstract
Ämnesord
Stäng
- We present the first photometric redshift distribution for a large sample of 870 mu m submillimeter galaxies (SMGs) with robust identifications based on observations with ALMA. In our analysis we consider 96 SMGs in the Extended Chandra Deep Field South, 77 of which have 4-19 band photometry. We model the SEDs for these 77 SMGs, deriving a median photometric redshift of z(phot) = 2.3 +/- 0.1. The remaining 19 SMGs have insufficient photometry to derive photometric redshifts, but a stacking analysis of Herschel observations confirms they are not spurious. Assuming that these SMGs have an absolute H-band magnitude distribution comparable to that of a complete sample of z similar to 1-2 SMGs, we demonstrate that they lie at slightly higher redshifts, raising the median redshift for SMGs to zphot = 2.5 +/- 0.2. Critically we show that the proportion of galaxies undergoing an SMG-like phase at z >= 3 is at most 35% +/- 5% of the total population. We derive a median stellar mass of M star = (8 +/- 1) x 10(10) M circle dot, although there are systematic uncertainties of up to 5 x for individual sources. Assuming that the star formation activity in SMGs has a timescale of similar to 100 Myr, we show that their descendants at z similar to 0 would have a space density and MH distribution that are in good agreement with those of local ellipticals. In addition, the inferred mass-weighted ages of the local ellipticals broadly agree with the look-back times of the SMG events. Taken together, these results are consistent with a simple model that identifies SMGs as events that form most of the stars seen in the majority of luminous elliptical galaxies at the present day.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Nyckelord
- DEGREE EXTRAGALACTIC SURVEY
- YALE-CHILE MUSYC
- galaxies: starburst
- 1.4 GHZ SURVEY
- galaxies: evolution
- OLD STELLAR POPULATIONS
- STAR-FORMING GALAXIES
- PHOTOMETRIC REDSHIFT
- BLACK-HOLES
- galaxies: high-redshift
- X-RAY SOURCES
- SIMILAR-TO 2
- FAR-INFRARED PROPERTIES
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Simpson, J. M.
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Swinbank, A. M.
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Smail, I.
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Alexander, D. M.
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Brandt, W. N.
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Bertoldi, F.
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visa fler...
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De Breuck, C.
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Chapman, S. C.
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Coppin, K. E. K.
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da Cunha, E.
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Danielson, A. L. ...
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Dannerbauer, H.
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Greve, T. R.
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Hodge, J. A.
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Ivison, R. J.
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Karim, A.
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Knudsen, Kirsten ...
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Poggianti, B. M.
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Schinnerer, E.
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Thomson, A. P.
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Walter, F.
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Wardlow, J. L.
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Weiss, A.
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van der Werf, P. ...
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- Om ämnet
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- NATURVETENSKAP
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Chalmers tekniska högskola