M. Tajer

TL;DR: In this article, the authors presented the SEDs of a hard X-ray selected sample containing 136 sources with F 2-10 keV > 10^(-14) erg cm^(-2) s^(-1); 132 are AGNs.

TL;DR: In this article, the spectral energy distributions (SEDs) of a hard X-ray selected sample were derived based on a SED fitting technique, and the authors identified AGN signatures in 83% of the objects.

TL;DR: In this paper, the Butcher-Oemler effect of the fraction of blue galaxies in clusters has been studied in a representative sample made of seven groups/clusters at z ∼ 0.35 and using wide field Cerro Tololo Inter- American Observatory images.

TL;DR: In this paper, the populations of obscured and unobscured AGN were investigated by probing their optical-IR and X-ray properties as a function of Xray flux, luminosity and redshift within a hard Xray selected sample with wide multiwavelength coverage.

TL;DR: In this paper, the authors presented a catalogue of X-ray sources resulting from the central area of the XMM-LSS (Large Scale Structure survey), which is limited to a sub-sample of 286 sources detected at 4σ in the 1 deg 2 area covered by the photometric VVDS (VIRMOS VLT Deep Survey).