EAS Publications Series
Volume 20, 2006Mass Profiles and Shapes of Cosmological Structures
|Page(s)||281 - 282|
|Published online||19 May 2006|
G.A. Mamon, F. Combes, C. Deffayet and B. Fort (eds)
EAS Publications Series, 20 (2006) 281-282
Mass Discrepancy in the Galaxy Cluster RBS 864 Derived from X-rays and Gravitational Lensing
Institute of Astrophysics, University of
2 IAEF, University of Bonn, Germany
We present the preliminary results from a combined X-ray/ lensing investigation of the galaxy cluster RBS 864 (z = 0.29). Morphological and spectral studies of X-ray data show a relaxed appearance of this cluster, thus allowing us to derive a good mass estimate. From optical data we found the presence of a very high number of arc candidates and performed a strong lensing mass analysis. We found a large discrepancy in the comparison of the X-ray and lensing masses.
© EAS, EDP Sciences, 2006
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