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Title:
High resolution X-ray spectroscopy of G292.0+1.8/MSH 11-54
Authors:
Vink, Jacco; Bleeker, Johan; Kaastra, Jelle S.; Rasmussen, Andrew
Affiliation:
AA(), AB(SRON National Institute for Space Research, Sorbonnelaan 2, 3584 CA, Utrecht, Netherlands), AC(SRON National Institute for Space Research, Sorbonnelaan 2, 3584 CA, Utrecht, Netherlands), AD(Columbia Astrophysics Laboratory, Columbia University, New York, NY, USA)
Publication:
Nuclear Physics B Proceedings Supplements, Volume 132, p. 62-65.
Publication Date:
06/2004
Origin:
ELSEVIER
DOI:
10.1016/j.nuclphysbps.2004.04.009
Bibliographic Code:
2004NuPhS.132...62V

Abstract

We present a preliminary analysis of XMM-Newton observations of the oxygen-rich supernova remnant G292.0+1.8 (MSH 11-54). 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 O VII triplet. We are also able to constrain the kinematics of the remnant using Ne IX as observed in the second order spectrum, and O VIII in the first order spectrum. We do not find evidence for O VII line shifts or Doppler broadening (σv<731 km s-1), but line broadening of the Ne X Lyα line seems to be present, corresponding to σv~1500 km s-1.
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