Low-energy X-ray line emission from IC 443

Details Low-energy X-ray line emission from IC 443 Low-energy X-ray line emission from IC 443

Jun 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...246l.121c&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 246, June 15, 1981, p. L121-L125.

Astronomy and Astrophysics

Astrophysics

4

Emission Spectra, Line Spectra, Nebulae, Supernova Remnants, X Ray Sources, X Ray Spectra, Astronomical Models, Electron Energy, Energy Spectra, Heao 1

Scientific paper

HEAO 1 observations of the spectrum of the supernova remnant IC 443 in the energy range of 0.4-3 keV reveal the presence of a complex structure suggestive of emission from Fe XVIII-XX, S XV-XVI, and Si XIII-XIV ions. The best electron temperature in the band for simple model fits is about (6-11) x 10 to the 6th K. Raymond and Smith collisional equilibrium emission models do not adequately fit the data. These results are discussed in terms of possible nonequilibrium effects in the remnant.

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