130 citations · 156 across the 3 of their papers we have counts for
7 papers · 1 filter
Obscured and powerful AGN and starburst activities at z~3.5
M. Polletta, A. Omont, S. Berta +9
We report the discovery of two sources at z=3.867 and z=3.427 that exhibit powerful starburst and AGN activities. They benefit from data from radio to X rays from the CFHTLS-D1/SWI…
Line shift, line asymmetry, and the 6Li/7Li isotopic ratio determination
Roger Cayrel, Matthias Steffen, Hum Chand +6
Context: Line asymmetries are generated by convective Doppler shifts in stellar atmospheres, especially in metal-poor stars, where convective motions penetrate to higher atmospheri…
Probing the cosmological variation of the fine-structure constant: Results based on VLT-UVES sample
H. Chand, R. Srianand, P. Petitjean +1
Development of fundamental physics relies on the constancy of various fundamental quantities such as the fine structure constant. Detecting or constraining the possible time variat…
The correlation of the Lyman-alpha forest in close pairs and groups of high-redshift quasars: clustering of matter on scales 1-5 Mpc
E. Rollinde, P. Petitjean, C. Pichon +4
We study the clustering of matter in the intergalactic medium from the Lyman-alpha forests seen in the spectra of pairs or groups of z ~ 2 quasars observed with FORS2 and UVES at t…
A VLT/FORS2 spectroscopic survey in the HDF-S
E. Vanzella, S. Cristiani, S. Arnouts +6
We report on low-resolution multi-object spectroscopy of 65 objects from I(AB) ~= 20 to I(AB) ~= 25 in the HDF-S obtained with the VLT Focal Reducer/low dispersion Spectrograph (FO…
Integral field spectroscopy of the radio galaxy 3C 171
I. Marquez, E. Pecontal, F. Durret +1
We have performed integral field spectroscopy of the radio galaxy 3C 171 (redshift z=0.238) with the TIGER instrument at the Canada France Hawaii telescope in the Hbeta-[OIII]4959-…