Observations of the Hubble Deep Field South with the Infrared Space Observatory - II. Associations and star formation rates

Mann, Robert G, Oliver, Seb, Carballo, Ruth, Franceschini, Alberto, Rowan-Robinson, Michael, Kontizas, Maria, Elbaz, David, Dapergolas, Anastasios, Kontizas, Evanghelos, Granato, Gian Luigi, Silva, Laura, Rigopoulou, Dimitra, Gonzalez-Serrano, J Ignacio, Verma, Aprajita, Serjeant, Steve, Efstathiou, Andreas and Van Der Werf, Paul P (2002) Observations of the Hubble Deep Field South with the Infrared Space Observatory - II. Associations and star formation rates. Monthly Notices of the Royal Astronomical Society, 332 (3). pp. 549-574. ISSN 0035-8711

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Abstract

We present results from a deep mid-infrared survey of the Hubble Deep Field South (HDF-S) region performed at 6.7 and 15 mum with the ISOCAM instrument on board the Infrared Space Observatory (ISO ). The final map in each band was constructed by the co-addition of four independent rasters, registered using bright sources securely detected in all rasters, with the absolute astrometry being defined by a radio source detected at both 6.7 and 15 mum. We sought detections of bright sources in a circular region of radius 2.5 arcmin at the centre of each map, in a manner that simulations indicated would produce highly reliable and complete source catalogues using simple selection criteria. Merging source lists in the two bands yielded a catalogue of 35 distinct sources, which we calibrated photometrically using photospheric models of late-type stars detected in our data. We present extragalactic source count results in both bands, and discuss the constraints that they impose on models of galaxy evolution, given the volume of space sampled by this galaxy population.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Depositing User: Seb Oliver
Date Deposited: 06 Feb 2012 21:22
Last Modified: 07 Mar 2017 07:38
URI: http://sro.sussex.ac.uk/id/eprint/30944

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