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astro-ph2001★ 36 cited
The Double Quasar HE1104-1805: a case study for time delay determination with poorly sampled lightcurves
R. Gil-Merino, L. Wisotzki, J. Wambsganss
We present a new determination of the time delay of the gravitational lens system HE1104-1805 ('Double Hamburger') based on a previously unpublished dataset. We argue that the prev…
astro-ph2001
The luminosity function of QSO host galaxies
L. Wisotzki, B. Kuhlbrodt, K. Jahnke
We report on results from H band imaging observations of a complete sample of high-luminosity low-redshift QSOs. The luminosity function of QSO hosts is similar in shape to that of…