8 papers · 1 filter
Report on the ESO Workshop "Obscured AGN Across Cosmic Time" held at Kloster Seeon, Bavaria, 5 to 8 June 2007
Robert Fosbury, Carlos De Breuck, Vincenzo Mainieri +2
While the radio-loud, obscured quasars (the radio galaxies) have been known and studied for decades, new and sensitive X-ray and mid-infrared surveys are now beginning to reveal la…
The First Appearance of the Red Sequence of Galaxies in Proto-Clusters at 2<~z<~3
T. Kodama, I. Tanaka, M. Kajisawa +5
We explore the evolved galaxy population in the proto-clusters around four high-z radio galaxies at 2<~z<~3 based on wide-field near-infrared imaging. Three of the four fields are…
Ly-alpha excess in high redshift radio galaxies: a signature of star formation
M. Villar-Martin, A. Humphrey, C. De Breuck +3
About 54% of radio galaxies at z>3 and 8% of radio galaxies at 2<z<3 show unusually strong Ly-alpha emission, compared with the general population of high redshift (z>2) radio gala…
Giant Lyman-alpha nebulae around z>2 radio galaxies: evidence for infall
A. Humphrey, M. Villar-Martin., R. Fosbury +4
We present an investigation into the possible relationship between side-to-side asymmetries of powerful radio galaxies at high redshift, with the goal of understanding the geometry…
Emission line galaxies at z = 6.5
Jaron Kurk, Andrea Cimatti, Sperello di Serego Alighieri +2
We are carrying out a search for Lyman alpha emitting galaxies at z = 6.5 employing slitless spectroscopy at the VLT. In our 43 square arcminute field we find three isolated single…
The NV/CIV ratio in high redshift radio galaxies
R. A. E. Fosbury, J. Vernet, M. Villar-Martin +3
Deep Keck spectropolarimetry has been obtained of a sample of powerful radio galaxies with . In addition to a clear 2200Ådust scattering/extinction signature and…