Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005pasj...57..459y&link_type=abstract
Publications of the Astronomical Society of Japan, Vol.57, No.3, pp. 459-463
Astronomy and Astrophysics
Astronomy
7
Ism: Individual (G344.7-0.1), Ism: Supernova Remnants, X-Rays: Ism, X-Rays: Sources, X-Rays: Spectra
Scientific paper
X-ray emission from a cataloged radio supernova remnant (SNR), G344.7-0.1, was observed in the ASCA Galactic Plane Survey. The X-ray image showed extended emission with a diameter of 6'--8'. The X-ray spectrum exhibited emission lines from He-like Si, S, Ar, and Ca, which indicates that the X-rays have a thermal plasma origin. The spectrum was represented by a thin thermal plasma model with a temperature of 0.7-0.8keV. The model fit showed that S and Ca are overabundant relative to the solar values. In addition to the emission lines from highly ionized atoms, an emission line at an energy of ˜ 6.4 keV was found. This line is attributable to a K transition line from low-ionized iron. The strong Fe-Kα line may suggest the existence of an Fe-rich plasma.
Bamba Aya
Koyama Katsuji
Ueno Masaru
Yamauchi Shigeo
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