Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
The SCUBA Half Degree Extragalactic Survey (SHADES) - IX. the environment, mass and redshift dependence of star formation
Monthly Notices of the Royal Astronomical Society, Volume 386, No. 4, Year 2008
Notification
URL copied to clipboard!
Description
We present a comparison between the SCUBA (Submillimetre Common User Bolometer Array) Half Degree Extragalactic Survey (SHADES) at 450 and 850 μm in the Lockman Hole East with a deep Spitzer Space Telescope survey at 3.6-24 μm conducted in guaranteed time. Using stacking analyses we demonstrate a striking correspondence between the galaxies contributing the submm extragalactic background light, with those likely to dominate the backgrounds at Spitzer wavelengths. Using a combination BRIzK plus Spitzer photometric redshifts, we show that at least a third of the Spitzer-identified submm galaxies at 1 < z < 1.5 appear to reside in overdensities when the density field is smoothed at 0.5-2 Mpc comoving diameters, supporting the high-redshift reversal of the local star formation-galaxy density relation. We derive the dust-shrouded cosmic star formation history of galaxies as a function of assembled stellar masses. For model stellar masses <1011 M ⊙, this peaks at lower redshifts than the ostensible z ∼ 2.2 maximum for submm point sources, adding to the growing consensus for 'downsizing' in star formation. Our surveys are also consistent with 'downsizing' in mass assembly. Both the mean star formation rates 〈dM */dt〉 and specific star formation rates 〈(1/M *) d M*/d t〉 are in striking disagreement with some semi-analytic predictions from the Millenium Simulation. The discrepancy could either be resolved with a top-heavy initial mass function, or a significant component of the submm flux heated by the interstellar radiation field. © 2008 RAS.
Authors & Co-Authors
Serjeant, Stephen B.G.
United Kingdom, Milton Keynes
The Open University
Dye, S.
United Kingdom, Cardiff
Cardiff University
Mortier, Angela M.J.
United Kingdom, Edinburgh
The University of Edinburgh
Peacock, John A.
United Kingdom, Edinburgh
The University of Edinburgh
Egami, Eiichi E.
United States, Tucson
The University of Arizona
Cirasuolo, Michele
United Kingdom, Edinburgh
The University of Edinburgh
Rieke, George H.
United States, Tucson
The University of Arizona
Borys, Colin J.K.
Canada, Toronto
University of Toronto
Chapman, Scott C.
United Kingdom, Cambridge
University of Cambridge
Clements, David L.
United Kingdom, London
Imperial College London
Coppin, Kristen E.K.
United Kingdom, Durham
Durham University
James S. Dunlop, James S.
United Kingdom, Edinburgh
The University of Edinburgh
Eales, Stephen A.
United Kingdom, Cardiff
Cardiff University
Farrah, Duncan G.
United States, Ithaca
Cornell University
Halpern, Mark
Canada, Vancouver
The University of British Columbia
Mauskopf, Phillip D.
United Kingdom, Cardiff
Cardiff University
Pope, Alexandra
Canada, Vancouver
The University of British Columbia
United States, Tucson
National Optical Astronomy Observatory
Rowan-Robinson, Michael
United Kingdom, London
Imperial College London
Scott, Douglas J.
Canada, Vancouver
The University of British Columbia
Smail, Ian R.
United Kingdom, Durham
Durham University
Vaccari, Mattia
Italy, Padua
Università Degli Studi Di Padova
Statistics
Citations: 43
Authors: 21
Affiliations: 12
Identifiers
Doi:
10.1111/j.1365-2966.2008.13197.x
ISSN:
00358711
Research Areas
Cancer
Study Design
Cross Sectional Study
Study Approach
Quantitative