Volume 376, Number 3, September IV 2001
|Page(s)||L27 - L30|
|Published online||15 September 2001|
Discovery of depressions in the X-ray emission of the distant galaxy cluster RBS797 in a CHANDRA observation
Astrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Birkenhead CH41 1LD, UK
2 Astrophysikalisches Institut Potsdam, An der Sternwarte 16, 14482 Potsdam, Germany
3 Universität Potsdam, Institut für Physik, Am Neuen Palais 10, 14469 Potsdam, Germany
Corresponding author: S. Schindler, firstname.lastname@example.org
Accepted: 9 July 2001
We present CHANDRA observations of the X-ray luminous, distant galaxy cluster RBS797 at . In the central region the X-ray emission shows two pronounced X-ray minima, which are located opposite to each other with respect to the cluster centre. These depressions suggest an interaction between the central radio galaxy and the intra-cluster medium, which would be the first detection in such a distant cluster. The minima are symmetric relative to the cluster centre and very deep compared to similar features found in a few other nearby clusters. A spectral and morphological analysis of the overall cluster emission shows that RBS797 is a hot cluster ( keV) with a total mass of .
Key words: galaxies: clusters: general / intergalactic medium / cosmology: observations / cosmology: theory / dark matter / X-rays: galaxies
© ESO, 2001
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.