Wide Field Imaging of the Hubble Deep Field-South Region I: Quasar Candidates

Abstract

We present candidate quasars from a multi-color (uBVRI + narrow-band) imaging survey of 1/2 square degree around the Hubble Deep Field - South. We identify 154 candidate quasars with B < 23 using color selection, consistent with previously measured QSO number counts if we assume a 60% selection efficiency. The narrow-band filter (NB) was centered at 3958 A to detect Ly-alpha at the redshift of J2233-6033, the HDF-S QSO. We confirm the presence of Ly-alpha nebulosity extending ~12'' around the HDF-S QSO, reported by Bergeron et al. (1999). We detect 10 point-like objects in emission through the NB filter. Of these, 7 satisfy our QSO color selection criteria. One of emission-line objects is a B~20 radio-quiet quasar at z=1.56, 6.7' from the line of sight to the HDF-S QSO and ~12'' from the western edge of the WFPC2 deep field.

arXiv comment13 pages and 6 figures, accepted for publication in ApJ

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• How are AGN Found?
• A Tunable Lyot Filter at Prime Focus: a Method for Tracing Supercluster Scales at z ~ 1
• Wide Field Imaging of the Hubble Deep Field South Region II: The Evolution of Galaxy Clustering at z<1
• Radio Observations of the Hubble Deep Field South region: I. Survey Description and Initial Results
• Radio Observations of the Hubble Deep Field South Region IV: Optical Properties of the Faint Radio Population
• MIPS 24 Micron Observations of the Hubble Deep Field South: Probing the IR-Radio Correlation of Galaxies at z > 1
• A Simple Prediction on the Surface Density of Galaxies at z ~ 6
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