Follow-up XMM-Newton observations of the cornerstone Wolf-Rayet binary WR140.

WR140 is the archetypal long period WR+O colliding wind binary (CWB) system,where the wind from the WR star collides with the wind of its massive companion.Its Xray brightness, giant IR outbursts, and distinctive nonthermal (NT) radiolightcurve are all attributed to the windwind collision region (WCR), theproperties of which dramatically change due to the exceptionally high orbitaleccentricity (e > 0.88). XMMNewton observations through periastron passage inAO7 provided unprecedented data on this system. Follow up observations willprovide data to complete our view of the Xray emission from its collidingwinds, in order determine the key parameters of this system and the physicalprocesses occuring at the WCR. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]