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- Centre National de la Recherche ScientifiqueFR348 papers
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14 papers · 2 filters
The Spectral Energy Distribution of Fermi bright blazars
A. A. Abdo, M. Ackermann, M. Ajello +107
(Abridged) We have conducted a detailed investigation of the broad-band spectral properties of the γ-ray selected blazars of the Fermi LAT Bright AGN Sample (LBAS). By combining ou…
Discovery of very high energy gamma rays from PKS 1424+240 and multiwavelength constraints on its redshift
The VERITAS Collaboration, V. A. Acciari, The Fermi Collaboration +4
We report the first detection of very-high-energy (VHE) gamma-ray emission above 140 GeV from PKS 1424+240, a BL Lac object with an unknown redshift. The photon spectrum above 140…
The SAURON project XVI: On the Sources of Ionisation for the Gas in Elliptical and Lenticular Galaxies
Marc Sarzi, Joseph C. Shields, Kevin Schawinski +16
Following our study on the incidence, morphology and kinematics of the ionised gas in early-type galaxies we now address the question of what is powering the observed nebular emiss…
Photometric redshifts and cluster tomography in the ESO Distant Cluster Survey
R. Pello, G. Rudnick, G. De Lucia +17
This paper reports the results obtained on the photometric redshifts measurement and accuracy, and cluster tomography in the ESO Distant Cluster Survey (EDisCS) fields. Photometric…
Focusing Cosmic Telescopes: Exploring Redshift z~5-6 Galaxies with the Bullet Cluster 1E0657-56
M. Bradač, T. Treu, D. Applegate +7
The gravitational potential of clusters of galaxies acts as a cosmic telescope allowing us to find and study galaxies at fainter limits than otherwise possible and thus probe close…
Evolution of the Early-Type Galaxy Fraction in Clusters since z = 0.8
Luc Simard, Douglas Clowe, Vandana Desai +13
We study the morphological content of a large sample of high-redshift clusters to determine its dependence on cluster mass and redshift. Quantitative morphologies are based on bulg…