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MAMBO 1.2 Millimeter observations of BzK-selected star-forming Galaxies at z~2
H. Dannerbauer, E. Daddi, M. Onodera +9
We present MAMBO 1.2 mm observations of five BzK-pre-selected vigorous starburst galaxies at z~2. Two of these were detected at more than 99.5% confidence levels, with 1.2 mm fluxe…
The HELLAS2XMM survey. IX. Spectroscopic identification of super-EROs hosting AGNs
R. Maiolino, M. Mignoli, L. Pozzetti +12
We present VLT near-IR spectroscopic observations of three X-ray sources characterized by extremely high X-ray-to-optical ratios (X/O>40), extremely red colors (6.3<R-K<7.4, i.e. E…
The HELLAS2XMM survey. VII. The hard X-ray luminosity function of AGN up to z=4: more absorbed AGN at low luminosities and high redshifts
F. La Franca, F. Fiore, A. Comastri +14
We have determined the cosmological evolution of the density of AGN and of their Nh distribution as a function of the un-absorbed 2-10 keV luminosity up to redshift 4. We used the…
The evolution of early-type galaxies at z~1 from the K20 survey
S. di Serego Alighieri, J. Vernet, A. Cimatti +10
We have performed VLT spectroscopy of an almost complete sample of 18 early-type galaxies with 0.88 < z < 1.3 plus two at z=0.67, selected from the K20 survey, and derived the velo…
On the Exotic Hard X-ray Source Populations in the Hellas2XMM survey
C. Vignali, M. Mignoli
Recent hard X-ray surveys have proven to be effective in discovering large numbers of X-ray sources that, despite the likely association with active nuclei, appear to be characteri…
The K20 survey. VII. The spectroscopic catalogue: spectral properties and evolution of the galaxy population
M. Mignoli, A. Cimatti, G. Zamorani +11
The K20 survey is a near infrared-selected, deep (Ks < 20) redshift survey targeting galaxies in two independent regions of the sky, the CDFS and the q0055-2659 field. The total Ks…