328 citations · 2.8k across the 61 of their papers we have counts for
6 papers · 1 filter
A Full Year's Chandra Exposure on SDSS Quasars from the Chandra Multiwavelength Project
Paul J. Green, T. L. Aldcroft, G. T. Richards +13
We study the spectral energy distributions and evolution of a large sample of optically selected quasars from the Sloan Digital Sky Survey (SDSS) that were observed in 323 Chandra…
The Aspen--Amsterdam Void Finder Comparison Project
Joerg M. Colberg, Frazer Pearce, Caroline Foster +16
Despite a history that dates back at least a quarter of a century studies of voids in the large--scale structure of the Universe are bedevilled by a major problem: there exist a la…
Detection of Cherenkov light from air showers with Geiger-APDs
A. N. Otte, I. Britvitch, A. Biland +6
We have detected Cherenkov light from air showers with Geiger-mode APDs (G-APDs). G-APDs are novel semiconductor photon-detectors, which offer several advantages compared to conven…
Massive Dark Matter Halos around Bright Isolated Galaxies in the 2dFGRS
Peder Norberg, Carlos S. Frenk, Shaun Cole
We identify a large sample of isolated bright galaxies and their fainter satellites in the 2dF Galaxy Redshift Survey (2dFGRS). We analyse the dynamics of ensembles of these galaxi…
Recent progress of GaAsP HPD development for the MAGIC telescope project
T. Y. Saito, M. Shayduk, M. V. Fonseca +6
Today the Hybrid Photon Detector (HPD) is one of the few low light level (LLL) sensors that can provide an excellent single and multiple photoelectron (ph.e.) amplitude resolution.…
The reflecting surface of the MAGIC-II Telescope
D. Bastieri, J. Arnold, C. Baixeras +19
The MAGIC Collaboration is building a second telescope, MAGIC II, improving the design of the current MAGIC Telescope. MAGIC II is being built at 85 m of distance from MAGIC I, and…