Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/42330

Title

Anglo-Australian telescope imaging and microslit spectroscopy in the Southern Hubble Deep Field

Author(s)

Glazebrook, Karl;  Verma, Aprajita;  Boyle, Brian J.;  Oliver, S.;  Mann, Robert G.;  Monbleau, Davienne

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 Anglo-Australian Telescope prime-focus images complete to R < 24, and the spectroscopy is 50% complete at R = 23. There is now strong evidence for a rich cluster at z simeq 0.58 flanking the Wide Field Planetary Camera 2 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 Hubble Space Telescope data are accurate to σz/(1 + z) = 0.03 (albeit with small number statistics). The observations were carried out as a community service for Hubble Deep Field science in order to demonstrate the first use of the nod-and-shuffle technique with a classical multiobject spectrograph and to test the use of microslits for ultrahigh multiplex observations along with a new volume phase holographic grism and deep-depletion CCD. The reduction of this new type of data is also described.

Publication type

Journal article

Source

Astronomical Journal, Vol. 131, no. 5 (May 2006), pp. 2383-2393

Publication year

2006

Keyword(s)

Catalogs;  Galaxies;  Evolution;  Instrumentation;  Spectrographs;  Surveys;  Redshifts;  Spectra

Publisher

University of Chicago Press

ISSN

0004-6256

Publisher URL

http://dx.doi.org/10.1086/501011

Copyright

Copyright © 2006. The American Astronomical Society. All rights reserved.

Peer reviewed