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An Analysis of the X‐Ray Emission from the Supernova Remnant 3C 397
The ASCA SIS and the ROSAT PSPC spectral data of the SNR 3C397 are analysed with a two-component non-equilibrium ionization model. Besides, the ASCA SIS0 and SIS1 spectra are also fitted simultaneously in an equilibrium case. The resulting values of the hydrogen column density yield a distance of ∼8 to 3C397. It is found that the hard X-ray emission, containing S and Fe Kα lines, arises primarily from the hot component, while most of the soft emission, composed mainly of Mg, Si, Fe L lines, anddoi:10.1086/307489 fatcat:nmcsb24vfvahvbpy7v4hjtn4py