At less than 4 Mpc away, Centaurus A (NGC 5128) is the nearest massive elliptical galaxy, the nearest radio galaxy, and the nearest recent merger. It is the ideal laboratory to study the connection between merging, massive black holes, the source of radio jets and merger-induced star formation in detail. Using NAOS-CONICA, guiding on the dust

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We report on the distribution of metallicities, [Fe/H], for very metal-poor stars in the halo of the Galaxy. Although the primary information on the nature of the Metallicity Distribution Function (MDF) is obtained from the two major recent surveys for metal-poor stars, the HK survey of Beers and collaborators, and the Hamburg/ESO Survey of

The latest results from the Jodrell Bank -- IAC two-element 33 GHz interferometer will be presented. Measurements are made of the amplitude of Cosmic Microwave Background (CMB) fluctuations on angular scales of 1o (l =208 ± 18) and 2o (l = 106 ± 19). The first results on a deep scan at 2o resolution showed a clear detection at all RAs with Δ T = 43

We present very deep near-infrared imaging in the Js, H and Ks-bands of the HDF-S and the field around the z=0.83 cluster MS1054-03 with ISAAC on the VLT. For the HDF-S this resulted in the deepest ground-based infrared observations to date and the deepest Ks-band in any field. We constructed Ks-selected multicolor catalogs in both fields

Ground based and HST imaging of quasars (see, e.g., Dunlop et al. 2003; Pagani et al. 2003 and references therein) clearly indicate that at z 0.5 quasars are hosted in massive galaxies dominated by the spheroidal component. While radio loud quasars (RLQ) are exclusively hosted by ellipticals exceeding by 2-3 mag L*, radio quiet quasars (RQQ) are