activity
20102013
collaborators

12 papers

astro-ph.CO2013

Kinematic analysis of a sample of X-ray luminous distant galaxy clusters. The - relation in the universe

Alessandro Nastasi, Hans Böhringer, Rene Fassbender +11

Observations and cosmological simulations show galaxy clusters as a family of nearly self-similar objects with properties that can be described by scaling relations as a function o…

astro-ph.CO2013

Distant galaxy clusters in a deep XMM-Newton field within the CFTHLS D4

Arjen de Hoon, Georg Lamer, Axel Schwope +15

The XMM-Newton Distant Cluster Project (XDCP) aims at the identification of a well defined sample of X-ray selected clusters of galaxies at redshifts z>0.8. We present a catalogue…

astro-ph.GA2012

Unusual quasars from the Sloan Digital Sky Survey selected by means of Kohonen self-organising maps

H. Meusinger, P. Schalldach, R. -D. Scholz +4

We exploit the spectral archive of the Sloan Digital Sky Survey (SDSS) Data Release 7 to select unusual quasar spectra. The selection method is based on a combination of the power…

astro-ph.CO2012

First simultaneous optical/near-infrared imaging of an X-ray selected, high-redshift cluster of galaxies with GROND: the galaxy population of XMMU J0338.7+0030 at z=1.1

D. Pierini, R. Suhada, R. Fassbender +28

The XMM-Newton Distant Cluster Project is a serendipitous survey for clusters of galaxies at redshifts z>=0.8 based on deep archival XMM-Newton observations. ... Low-significance c…

astro-ph.CO2011

The X-ray luminous galaxy cluster population at 0.9<z<~1.6 as revealed by the XMM-Newton Distant Cluster Project

R. Fassbender, H. Boehringer, A. Nastasi +12

We present the largest sample of spectroscopically confirmed X-ray luminous high-redshift galaxy clusters to date comprising 22 systems in the range 0.9<z<\sim1.6 as part of the XM…

astro-ph.CO2011

Discovery of the X-ray selected galaxy cluster XMMU J0338.8+0021 at z = 1.49 - Indications for a young system with a forming brightest galaxy

Alessandro Nastasi, Rene Fassbender, Hans Böhringer +11

We report on the discovery of a galaxy cluster at z = 1.490 originally selected as an extended X-ray source in the XMM-Newton Distant Cluster Project. Further observations carried…