Imaging and Spectroscopy of a New SNR and a Potentially Ejected Neutron Star

We request a 56 ksec (40 ksec plus flaring) observation of a new Galacticsupernova remnant. Swift J132150.9633350 was discovered this year as part ofthe Swift Galactic Plane Survey; it is potentially the youngest SNR currentlyknown. Moreover, a faint point source lies near to the remnant, in the directionof strong brightening of the remnant.s edge. This source may be an ejectedneutron star. The RGS is the best current instrument for high resolutionspectroscopy of extended sources. It will enable unique tests of gas velocities,temperatures, and abundances, and illuminate the nature of the SN explosion.EPIC timing and spectroscopy of the nearby point source will help to reveal thenature of its spectrum, and place tight limits on any pulsed emission. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]