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The Thermal Composite Supernova Remnant Kesteven 27 as Viewed by<i>Chandra</i>: Shock Reflection from a Cavity Wall
We present a spatially resolved spectroscopic study of the thermal composite supernova remnant Kes 27 with Chandra. The X-ray spectrum of Kes 27 is characterized by K lines from Mg, Si, S, Ar, and Ca. The X-ray-emitting gas is found to be enriched in sulfur and calcium. The broadband and …