High-redshift star formation in the Hubble Deep Field revealed by a submillimetre-wavelength survey

David H. Hughes (), Stephen Serjeant, James Dunlop, Michael Rowan-Robinson, Andrew Blain, Robert G. Mann, Rob Ivison, John Peacock, Andreas Efstathiou, Walter Gear, Seb Oliver, Andy Lawrence, Malcolm Longair, Pippa Goldschmidt and Tim Jenness
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David H. Hughes: Institute for Astronomy, University of Edinburgh
Stephen Serjeant: Astrophysics Group, Imperial College, Blackett Laboratory
James Dunlop: Institute for Astronomy, University of Edinburgh
Michael Rowan-Robinson: Astrophysics Group, Imperial College, Blackett Laboratory
Andrew Blain: Cavendish Astrophysics Group, Cavendish Laboratory
Robert G. Mann: Astrophysics Group, Imperial College, Blackett Laboratory
Rob Ivison: Institute for Astronomy, University of Edinburgh
John Peacock: Institute for Astronomy, University of Edinburgh
Andreas Efstathiou: Astrophysics Group, Imperial College, Blackett Laboratory
Walter Gear: Mullard Space Science Laboratory, University College London
Seb Oliver: Astrophysics Group, Imperial College, Blackett Laboratory
Andy Lawrence: Institute for Astronomy, University of Edinburgh
Malcolm Longair: Cavendish Astrophysics Group, Cavendish Laboratory
Pippa Goldschmidt: Astrophysics Group, Imperial College, Blackett Laboratory
Tim Jenness: Joint Astronomy Centre

Nature, 1998, vol. 394, issue 6690, 241-247

Abstract: Abstract In the local Universe, most galaxies are dominated by stars, with less than ten per cent of their visible mass in the form of gas. Determining when most of these stars formed is one of the central issues of observational cosmology. Optical and ultraviolet observations of high-redshift galaxies (particularly those in the Hubble Deep Field) have been interpreted as indicating that the peak of star formation occurred between redshifts of 1 and 1.5. But it is known that star formation takes place in dense clouds, and is often hidden at optical wavelengths because of extinction by dust in the clouds. Here we report a deep submillimetre-wavelength survey of the Hubble Deep Field; these wavelengths trace directly the emission from dust that has been warmed by massive star-formation activity. The combined radiation of the five most significant detections accounts for 30–50 per cent of the previously unresolved background emission in this area. Four of these sources appear to be galaxies in the redshift range 2

Date: 1998
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DOI: 10.1038/28328

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