Search Publications
Abell 851: Are we looking at the beginning of a merging process?
Schindler, S.; De Filippis, E.
We present an XMM observation of the moderately distant (z=0.41)galaxy cluster CL 0939+4713 (Abell 851), an exceptionally rich cluster. The formation and evolution of clusters depends sensitively on cosmological parameters like the mean matter density in the universe Οm. Therefore it is important to determine the dynamical state of clus…
X-ray emission from dwarf galaxies: IC 2574 revisited
Walter, Fabian; Brinks, Elias; Kerp, Jürgen
Until recently, few unequivocal detections had been reported of the hot, X-ray emitting gas thought to be associated with the large, coherent structures variously described as supershells or superbubbles in dwarf irregular (dIrr) galaxies. In this contribution we report follow-up XMM-Newton and Chandra observations of our ROSAT detection of X-ray …