High Resolution Spectroscopy of the Cluster of Galaxies A 1835

We propose to observe the cluster of galaxies A 1835 to verify the capabilityof the RGS to analyse spatially resolved extended sources. A 1835 is anideal target for this since it has a FWHM of only 0.8 arcmin, allowinga high spectral resolution with the RGS and also an almost completecoverage of the cooling flow region within the crossdispersion widthof the detector. In particular we will study the temperature andabundance distribution of the cooling flow region. The EPIC observationswill supplement this for the outer regions of the cluster, wherewe will study the abundance and temperature gradients as well asinvestigate the existence of nonthermal components. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]