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Deep BVR photometry of the Chandra Deep Field South from the COMBO-17 survey
C. Wolf, S. Dye, M. Kleinheinrich +3
We report on deep multi-color imaging (R_5-sigma = 26) of the Chandra Deep Field South, obtained with the Wide Field Imager (WFI) at the MPG/ESO 2.2 m telescope on La Silla as part…
The stellar content of the Hamburg/ESO survey. I. Automated selection of DA white dwarfs
N. Christlieb, L. Wisotzki, D. Reimers +3
We describe automatic procedures for the selection of DA white dwarfs in the Hamburg/ESO objective-prism survey (HES). For this purpose, and the selection of other stellar objects…
The Hamburg/ESO survey for bright QSOs. III. A large flux-limited sample of QSOs
L. Wisotzki, N. Christlieb, N. Bade +4
We present a new sample of 415 bright QSOs and Seyfert~1 nuclei drawn from the Hamburg/ESO survey (HES). The sample is spectroscopically 99 % complete and well-defined in terms of…
A Close Separation Double Quasar Lensed by a Gas-Rich Galaxy
Michael D. Gregg, Lutz Wisotzki, Robert Becker +5
In the course of a Cycle 8 snapshot survey, we have discovered that the z=1.565 quasar HE 0512-3329 is a double with image separation 0.644", almost certainly due to gravitational…