The European Large Area ISO Survey - III. 90-μm extragalactic source counts

Andreas Efstathiou, Seb Oliver, Michael Rowan-Robinson, C. Surace, T. Sumner, P. Héraudeau, M. J. D. Linden-Vørnle, D. Rigopoulou, S. Serjeant, R. G. Mann, C. J. Cesarsky, L. Danese, A. Franceschini, R. Genzel, A. Lawrence, D. Lemke, R. G. McMahon, G. Miley, J.-L. Puget, B. Rocca-Volmerange

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Abstract / Description of output

We present results and source counts at 90μm extracted from the preliminary analysis of the European Large Area ISO Survey (ELAIS). The survey covered about 12deg2 of the sky in four main areas and was carried out with the ISOPHOT instrument onboard the Infrared Space Observatory (ISO). The survey is at least an order of magnitude deeper than the IRAS 100-μm survey and is expected to provide constraints on the formation and evolution of galaxies. The majority of the detected sources are associated with galaxies on optical images. In some cases the optical associations are interacting pairs or small groups of galaxies, suggesting that the sample may include a significant fraction of luminous infrared galaxies. The source counts extracted from a reliable subset of the detected sources are in agreement with strongly evolving models of the starburst galaxy population.
Original languageEnglish
Pages (from-to)1169-1177
JournalMonthly Notices of the Royal Astronomical Society
Issue number4
Publication statusPublished - 1 Dec 2000

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