XMM-Newton Studies of the Gamma-Ray Pulsar PSR J2021+3651 and its Large Nebula

We propose a 120virgulks observation to search for Xray pulsations from PSRJ2021+3651, the first of the new highenergy gammaray pulsars of the AGILE andFermi era, and to map any spectral changes across its large, extended outernebula. Pulsed GeV emission from this source was strongly detected by both theFermi and AGILE missions. Deep Chandra imaging of the inner nebula shows thatthe pulsar is embedded in a compact torus+jet shaped nebula, requiringcorrespondingly deep observations with XMMNewton to measure Xray pulsations.We will simultaneously perform sensitive imaging of the outer nebula whichextends over 20 arcminutes and is likely associated with the TeV source MGROJ2019+37. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]