RT Journal Article T1 Discovery of depressions in the X-ray emission of the distant galaxy cluster RBS797 in a CHANDRA observation A1 Schindler, S. A1 Castillo Morales, María África A1 De Filippis, E. A1 Schwope, A. A1 Wambsganss, J. AB We present CHANDRA observations of the X-ray luminous, distant galaxy cluster RBS797 at z = 0.35. 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 (T = 7.7(-1.0)(+1.2) keV) with a total mass of M-tot(r(500)) = 6.5(-1.2)(+1.6) x 10(14) M-.. PB EDP Sciencies SN 1432-0746 YR 2001 FD 2001-09 LK https://hdl.handle.net/20.500.14352/59580 UL https://hdl.handle.net/20.500.14352/59580 LA eng NO We thank Doug Burke and Valeri Hambaryan for help with the data analysis and Phil James for carefully reading the manuscript. DS Docta Complutense RD 11 abr 2025