Extended sources in the XMM-Newton slew survey
  The low background, good spatial resolution and great sensitivity of the EPIC-pn camera on XMM-Newton give useful limits for the detection of extended sources even during the short exposures made during slewing maneouvers. In this paper we attempt to illustrate the potential of the XMM-Newton slew survey as a tool for analysing flux-limited samples of clusters of galaxies and other sources of spatially extended X-ray emission. 
V. Lazaro (1), R. Saxton (1), A.M. Read (2), M.P. Esquej (1), M.J.   Freyberg (3), B.Altieri (1), D. Bermejo (1) ((1) Europe...