XMM-Newton observations of M87 and Its X-Ray Halo
  We report performance verification observations of the giant elliptical galaxy M87 in the Virgo Cluster with the MOS, pn, and optical monitor instruments on board of XMM-Newton. With the energy sensitive imaging instruments MOS and pn we obtain the first spatially constrained X-ray spectra of the nucleus and the jet of the galaxy. The good photon statistics of the pn and MOS allow a detailed analysis of the radial temperature and abundance distribution of 6 elements. The data provide no indication of a multi-temperature structure for radii less than 2 arcmin. An apparent sharp metal abundance drop deduced for the regions inside this radius is probably due to resonant line scattering. 
H. Boehringer, E. Belsole, J. Kennea, K. Matsushita, S. Molendi, D. M.   Worrall, R.F. Mushotzky, M. Ehle, M. Guainazzi, I. ...