Soft X-ray observation of supernova remnant IC 443

Details Soft X-ray observation of supernova remnant IC 443 Soft X-ray observation of supernova remnant IC 443

Nov 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...250..216g&link_type=abstract

Astrophysical Journal, Part 1, vol. 250, Nov. 1, 1981, p. 216-221. Natural Sciences and Engineering Research Council of Canada

Other

7

Astronomical Models, Stellar Spectra, Supernova Remnants, X Ray Sources, Centroids, Emission Spectra, Heao 1, Iron, Line Spectra, Metal Ions, Photon Density, Star Distribution, Stellar Temperature, X Ray Spectra

Scientific paper

The low-energy X-ray spectrum (0.15-3.0 keV) and X-ray centroid position of the supernova remnant IC 443 have been determined using data obtained by the HEAO-1 A-2 experiment. The spectrum exhibits a low-energy excess over and above that predicted by an extrapolation of the higher-energy spectrum determined by Parkes et al (1976). The excess can be attributed to line emission, predominately from high-ionization states of iron from a plasma at a temperature of 7.7 + or - 0.6 or -4.3 x 10 to the 6th K. Other models which fit the data are discussed, in particular, a lower-temperature component required to explain the Fe X optical emission.

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