Catching A Symbiotic Star.s Pulsed Jet in the Act: X-Ray Observations of MWC560

Although jets are ubiquitous and important components in many differentastrophysical systems, their formation remains very poorly understood. Thepoleon jet in the symbiotic system MWC 560 serves as a Rosetta Stone forunderstanding pulsed, highly collimated, jets. We propose to use XMM for Xrayobservations of the symbiotic star MWC 560. It provides us with a uniqueopportunity to observe the launch site of the jet, the shockinduced propagationof the jet, and its end point, where the ejecta merge into the jet head. Wedetected with XMM a hard component from the accretion site and a soft componentassociated with the jet. Further observations are required for solving questionsconcerning the accretion process and for characterizing the soft component. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]