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

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posted on 2023-06-08, 09:47 authored by Robert G Mann, Seb OliverSeb Oliver, Ruth Carballo, Alberto Franceschini, Michael Rowan-Robinson, Maria Kontizas, David Elbaz, Anastasios Dapergolas, Evanghelos Kontizas, Gian Luigi Granato, Laura Silva, Dimitra Rigopoulou, J Ignacio Gonzalez-Serrano, Aprajita Verma, 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 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.

History

Publication status

  • Published

File Version

  • Published version

Journal

Monthly Notices of the Royal Astronomical Society

ISSN

0035-8711

Issue

3

Volume

332

Page range

549-574

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2012-02-06

First Open Access (FOA) Date

2016-03-22

First Compliant Deposit (FCD) Date

2016-08-17

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