MNRAS-2002-Oliver-536-48.pdf (1.93 MB)
Observations of the Hubble Deep Field South with the Infrared Space Observatory– I. Observations, data reduction and mid-infrared source counts
journal contributionposted on 2023-06-07, 19:25 authored by Seb OliverSeb Oliver, Robert G Mann, Ruth Carballo, Alberto Franceschini, Michel Rowan-Robinson, Maria Kontizas, Anastasios Dapergolas, Evanghelos Kontizas, Aprajita Verma, David Elbaz, Gian Luigi Granato, Laura Silva, Dimitra Rigopoulou, J. Ignacio Gonzalo-serrano, Steve Serjeant, Andreas Efstathiou, Paul P van der Werf
We present results from a deep mid-infrared survey of the Hubble Deep Field South (HDF-S) region performed at 6.7 and 15 µm 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 µm. 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.
- Published version
JournalMonthly Notices of the Royal Astronomical Society
PublisherOxford University Press
Department affiliated with
- Physics and Astronomy Publications
NotesThis was the deepest ISO survey, used in a subsequent paper to estimate the star-formation history of the Universe. I did most of the work for this paper. High ranking authors helped with source confirmation and identification (Mann), stellar identification/modeling (Carballo, Kontizas, Dapergolas), galaxy modeling (Franceschini, Rowan-Robinson).
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