AAT Imaging and Microslit Spectroscopy in the Southern Hubble Deep Field

Abstract

We present a deep photometric (B- and R-band) catalog and an associated spectroscopic redshift survey conducted in the vicinity of the Hubble Deep Field South. The spectroscopy yields 53 extragalactic redshifts in the range 0<z<1.4 substantially increasing the body of spectroscopic work in this field to over 200 objects. The targets are selected from deep AAT prime focus images complete to R<24 and spectroscopy is 50% complete at R=23. There is now strong evidence for a rich cluster at z\simeq 0.58 flanking the WFPC2 field which is consistent with a known absorber of the bright QSO in this field. We find that photometric redshifts of z<1 galaxies in this field based on HST data are accurate to σ_z/(1+z)=0.03 (albeit with small number statistics). The observations were carried out as a community service for Hubble Deep Field science, to demonstrate the first use of the `nod & shuffle' technique with a classical multi-object spectrograph and to test the use of `microslits' for ultra-high multiplex observations along with a new VPH grism and deep-depletion CCD. The reduction of this new type of data is also described.

arXiv commentFrom the better late than never department: AJ in press (2006). 16 pages, 2 tables, 6 figures, final data release + Appendix at http://www.aao.gov.au/hdfs/Redshifts/

References in corpus (6)

• A new catalog of photometric redshifts in the Hubble Deep Field
• The Gemini Deep Deep Survey: I. Introduction to the Survey, Catalogs and Composite Spectra
• Microslit Nod-shuffle Spectroscopy - a technique for achieving very high densities of spectra
• Observations of the Hubble Deep Field South with the Infrared Space Observatory - II. Associations and star formation rates
• A VLT/FORS2 spectroscopic survey in the HDF-S
• Redshifts in the Hubble Deep Field South

Cited by in corpus (4)

• The MUSE 3D view of the Hubble Deep Field South
• Radio Observations of the Hubble Deep Field South Region IV: Optical Properties of the Faint Radio Population
• On the characteristics of tidal structures of interacting galaxies
• The discovery and classification of 16 supernovae at high redshifts in ELAIS-S1 - the Stockholm VIMOS Supernova Survey II