XMM Observations of the Galactic Supernova Remnant CTB-109 (G109.1-1.0)

Details XMM Observations of the Galactic Supernova Remnant CTB-109 (G109.1-1.0) XMM Observations of the Galactic Supernova Remnant CTB-109 (G109.1-1.0)

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...201.8705p&link_type=abstract

American Astronomical Society, 201st AAS Meeting, #87.05; Bulletin of the American Astronomical Society, Vol. 34, p.1247

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Scientific paper

We present a preliminary analysis of the XMM observations of the Galactic Supernova Remnant (SNR) CTB-109 (G109.1-1.0). CTB-109 presents a unique laboratory for studying the interaction of SNRs with interstellar clouds: one half of the remnant has expanded unimpeded into a low-density medium and the other half has expanded directly into a dense molecular cloud. The nearly ideal viewing geometry allows the two halves to be cleanly separated. CTB-109 is also the host remnant for the first-detected Anomalous X-ray Pulsar (AXP) 1E 2259-586. We will use the high-quality spectra from XMM to constrain the temperature and ionization timescale of the X-ray emitting gas in order to determine the evolutionary state of the SNR shock. We will also explore the spectral characteristics of the unusual ``Lobe'' feature which has previously been suggested to be related to the AXP 1E 2259+586. The characterization of the existing SNR around 1E 2259+586 should provide useful constraints on the progenitor and surrounding medium which give rise to AXPs in general. This work was supported by NASA contract NAS8-39703 and NASA grant NAG5-9914.

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