We have discovered two new high redshift (z = 2:38) galaxies, near the previously known z = 2:38 galaxy 2139\Gamma4434 B1 (Francis et al. 1996). All three galaxies are strong Lyff emitters, and have much redder continuum colors (I \Gamma K 5) than other optically-selected high redshift galaxies. We hypothesize that these three galaxies are QSO IIs; radio-quiet counterparts of high redshift radio galaxies, containing concealed QSO nuclei. The red colors are most easily modelled by an old (? 0:5 Gyr), massive (? 10 11 M fi ) stellar population. If true, this implies that at least one galaxy cluster of mass AE 3 \Theta 10 11 M fi had collapsed before redshift five. Subject headings: galaxies: clusters: individual (2139\Gamma4434) ---...
We report the observation of a group of 16 red (V -I > 2) galaxies, in the magnitude range 22 ≤ V...
To properly understand the evolution of high-redshift galaxy clusters, both passive and star-forming...
Photometry is presented in R, J, H, K of the z=2.37 QSO 0820+296 and its environment. Colours and ma...
We have discovered two new high redshift (z=2.38) galaxies, near the previously known z=2.38 galaxy...
We have found 3 Lyman alpha emission line galaxies at redshift 2.38, near the QSO absorption line co...
Most currently known high redshift (z>2) galaxies are either powerful radio sources, or compact blue...
We report the discovery of a group of galaxies at redshift 2.38. We imaged ∼ 10% of a claimed superc...
We present a spectroscopic campaign to follow-up red colour-selected candidate massive galaxies in t...
We present a spectroscopic campaign to follow-up red colour-selected candidate massive galaxies in ...
Powerful radio galaxies (RGs) at high redshift have long been suspected to lie at the centre of asse...
We present new deep K-band and optical images of four radio-quiet QSOs at z ≈ 1 and six radio-quiet ...
We present NICMOS observations of the central regions of a rich cluster of galaxies at redshift z=2....
Artículo de publicación ISIWe have conducted ultra-deep optical and deep near-infrared observations ...
We use very deep near-infrared photometry of the Hubble Deep Field-South taken with ISAAC on th...
The detection of high-redshift clusters of galaxies is important in under-standing the evolution of ...
We report the observation of a group of 16 red (V -I > 2) galaxies, in the magnitude range 22 ≤ V...
To properly understand the evolution of high-redshift galaxy clusters, both passive and star-forming...
Photometry is presented in R, J, H, K of the z=2.37 QSO 0820+296 and its environment. Colours and ma...
We have discovered two new high redshift (z=2.38) galaxies, near the previously known z=2.38 galaxy...
We have found 3 Lyman alpha emission line galaxies at redshift 2.38, near the QSO absorption line co...
Most currently known high redshift (z>2) galaxies are either powerful radio sources, or compact blue...
We report the discovery of a group of galaxies at redshift 2.38. We imaged ∼ 10% of a claimed superc...
We present a spectroscopic campaign to follow-up red colour-selected candidate massive galaxies in t...
We present a spectroscopic campaign to follow-up red colour-selected candidate massive galaxies in ...
Powerful radio galaxies (RGs) at high redshift have long been suspected to lie at the centre of asse...
We present new deep K-band and optical images of four radio-quiet QSOs at z ≈ 1 and six radio-quiet ...
We present NICMOS observations of the central regions of a rich cluster of galaxies at redshift z=2....
Artículo de publicación ISIWe have conducted ultra-deep optical and deep near-infrared observations ...
We use very deep near-infrared photometry of the Hubble Deep Field-South taken with ISAAC on th...
The detection of high-redshift clusters of galaxies is important in under-standing the evolution of ...
We report the observation of a group of 16 red (V -I > 2) galaxies, in the magnitude range 22 ≤ V...
To properly understand the evolution of high-redshift galaxy clusters, both passive and star-forming...
Photometry is presented in R, J, H, K of the z=2.37 QSO 0820+296 and its environment. Colours and ma...