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- W3123458001 abstract "Chandra observations of M31 allow the first spatially resolved X-ray image of a supernova remnant (SNR) in an external spiral galaxy. CXOM31 J004327.7+411829 is a slightly elongated ring-shaped object with a diameter of ~11'' (42 pc). In addition, the X-ray image hints that the chemical composition of the SNR is spatial dependent. The X-ray spectrum of the SNR can be well fitted with a Raymond-Smith model or a nonequilibrium ionization model. Depending on the spectral model, the 0.3-7 keV luminosity is between 3.2 × 1036 and 4.5 × 1037 ergs s-1. The age of the SNR is estimated to be 3210-22,300 yr, and the number density of ambient gas is ~0.003-0.3 cm-3. This suggests that the local interstellar medium around the SNR is low." @default.
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- W3123458001 date "2002-12-01" @default.
- W3123458001 modified "2023-09-27" @default.
- W3123458001 title "The Discovery of a Spatially Resolved Supernova Remnant in M31 with [ITAL]Chandra[/ITAL]" @default.
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- W3123458001 doi "https://doi.org/10.1086/345610" @default.
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