High Resolution X-ray Spectroscopy of G292.0+1.8/msh 11-54

We present a preliminary analysis of XMM-Newton observations of the oxygen-rich supernova remnant G292.0+1.8 (MSH11-54). Although the spatial extent of the remnant is 8′ the bright central bar is narrow (1-2′) resulting in RGS spectra of a high spectral quality. This allows us to spectroscopically identify a cool, kTe= 0.3 keV, and underionized component, resolve details of the Fe-L complex, and resolve the forbidden and resonant lines of the OVII triplet. We are also able to constrain the kinematics of the remnant using Ne IX as observed in the second order spectrum, and OVIII in the first order spectrum. We do not find evidence for OVII line shifts or Doppler broadening (σv < 731 km s ), but line broadening of the NeX Lyα line seems to be present, corresponding to σv ∼ 1500 kms .