High- redshift star formation in the Hubble Deep Field revealed by a submillimetre- wavelength survey : Abstract : Nature. Nature. 39. 4, 2. July 1. 99. 8) . Hughes. Stephen Serjeant. James Dunlop. 1. Michael Rowan- Robinson. Andrew Blain. 3. Robert G. Mann. 2. Rob Ivison. John Peacock. 1. Andreas Efstathiou.
Walter Gear. 4. Seb Oliver. Andy Lawrence. 1. Malcolm Longair. 3. Pippa Goldschmidt. Tim Jenness. 5. Institute for Astronomy, University of Edinburgh, Royal Observatory, Edinburgh EH9 3. HJ, UK. Astrophysics Group, Imperial College, Blackett Laboratory, Prince Consort Road, London SW7 2. BZ, UK. Cavendish Astrophysics Group, Cavendish Laboratory, Madingley Road, Cambridge CB3 0. Redshift-space distortions are an effect in observational cosmology where the spatial distribution of galaxies appears squashed and distorted when their positions. Observational Cosmology. Observational Cosmology S. Serjeant Cambridge University Press 2010 324 pages paperback. Stephen Serjeant, is a reader in cosmology at The Open University in Milton Keynes, UK. He manages to write in a very interesting. Observational Cosmology by Stephen Serjeant fills a niche that was underserved in. To make room for all these graphs and observational. Observational Cosmology also tries to serve as a kind of primer on the. 1 Observational Cosmology Stephen Serjeant HE, UK. Mullard Space Science Laboratory, University College London, Holmbury St Mary, Surrey RH5 6. NT, UK. Joint Astronomy Centre, 6. N. A'ohoku Place, Hilo, Hawaii 9. USA. Correspondence to: David H. Hughes. 1. Correspondence and requests for materials should be addressed to D. H. 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. 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 3. Four of these sources appear to be galaxies in the redshift range 2< z < 4, which, assuming these objects have properties comparable to local dust- enshrouded starburst galaxies, implies a star- formation rate during that period about a factor of five higher than that inferred from the optical and ultraviolet observations.
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