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- European Southern ObservatoryCL207 papers
- University of OxfordGB53 papers
- Space Telescope Science InstituteUS48 papers
- Leiden Observatory47 papers
- University of HertfordshireGB47 papers
- Centre de Recherche Astrophysique de LyonFR42 papers
- Leiden UniversityNL40 papers
- University of GroningenNL39 papers
- Centre National de la Recherche ScientifiqueFR34 papers
- Lyon 1 UniversitéFR32 papers
- Max Planck Institute for AstrophysicsDE32 papers
- Observatoire de LyonFR32 papers
9 papers · 1 filter
Radio galaxies at z~2.5: results from Keck spectropolarimetry
J. Vernet, R. A. E. Fosbury, M. Villar-Martin +4
In classifying the ensemble of powerful extragalactic radio sources, considerable evidence has accumulated that radio galaxies and quasars are orientation-dependent manifestations…
Mining the local Universe: the QSO space density
S. Cristiani, A. Grazian, A. Omizzolo +1
We present progress results of a new survey for bright QSOs (V<14.5, R<15.4, B_J<15.2) covering the whole sky at high galactic latitudes, |b|>30. The surface density of QSOs bright…
WFPC2 Observations of the Hubble Deep Field-South
Stefano Casertano, Duilia de Mello, Mark Dickinson +14
The Hubble Deep Field-South observations targeted a high-galactic-latitude field near QSO J2233-606. We present WFPC2 observations of the field in four wide bandpasses centered at…
Photometric redshifts and selection of high redshift galaxies in the NTT and Hubble Deep Fields
A. Fontana, S. D'Odorico, F. Poli +5
We present and compare in this paper new photometric redshift catalogs of the galaxies in three public fields: the NTT Deep Field, the HDF-N and the HDF-S. Photometric redshifts ha…
Depletion of background galaxies due to the cluster lens CL0024+1654: U and R band observations
O. E. Rognvaldsson, T. R. Greve, J. Hjorth +7
We have obtained U and R band observations of the depletion of background galaxies due to the gravitational lensing of the galaxy cluster CL0024+1654 (z=0.39). The radial depletion…
A Photometric Study of the Ages and Metallicities of Early-type Galaxies in A2218
Ian Smail, Harald Kuntschner, T. Kodama +4
We present deep optical and near-infrared imaging of the rich cluster A2218 at z=0.17. Our optical imaging comes from new multicolour Hubble Space Telescope WFPC2 observations in t…