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The B band luminosities of QSO host galaxies
K. Jahnke, L. Wisotzki
We report on the analysis of B band imaging data of 57 low-redshift QSOs and Seyfert 1 galaxies selected from the Hamburg/ESO-Survey, for which host galaxy dependent selection bias…
GEMS Imaging of Red Sequence Galaxies at z~0.7: Dusty or Old?
Eric F. Bell, Daniel H. McIntosh, Marco Barden +13
We have used the 30'x30' Hubble Space Telescope image mosaic from the Galaxy Evolution from Morphology and SEDs (GEMS) project in conjunction with the COMBO-17 deep photometric red…
Integral-field spectroscopy of the quadruple QSO HE 0435-1223: Evidence for microlensing
L. Wisotzki, T. Becker, L. Christensen +5
We present the first spatially resolved spectroscopic observations of the recently discovered quadruple QSO and gravitational lens HE0435-1223. Using the Potsdam Multi-Aperture Spe…
The evolution of faint AGN between z~1 and z~5 from the COMBO-17 survey
C. Wolf, L. Wisotzki, A. Borch +3
We present a determination of the optical/UV AGN luminosity function and its evolution, based on a large sample of faint (R<24) QSOs identified in the COMBO-17 survey. Using multi-…
Nearly 5000 Distant Early-Type Galaxies in COMBO-17: a Red Sequence and its Evolution since z~1
Eric F. Bell, Chris Wolf, Klaus Meisenheimer +6
We present the rest-frame colors and luminosities of ~25000 m_R<24 galaxies in the redshift range 0.2<z<1.1, drawn from 0.78 square degrees of the COMBO-17 survey. We find that the…
Integral Field Spectroscopy of SN 2002er with PMAS
L. Christensen, T. Becker, K. Jahnke +4
We present observations of the Type Ia supernova SN 2002er during the brightening phase. The observations were performed with the Potsdam Multi Aperture Spectrophotometer (PMAS) in…