Observation of the Supernova Remnant Kes 79

Details Observation of the Supernova Remnant Kes 79 Observation of the Supernova Remnant Kes 79

Oct 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002pasj...54..735t&link_type=abstract

Publications of the Astronomical Society of Japan, Vol.54, No.5, pp.735-740

Astronomy and Astrophysics

Astronomy

1

Abundances, Ism: Individual (Kes79), Supernova Remnants, X-Rays: Ism

Scientific paper

We report here on an ASCA observation of Kes79, a possible mixed-morphology (MM) SNR. There are two radio shells: an inner shell and an outer shell. A ROSAT observation revealed an inner ring in X-ray that has been confirmed by the ASCA observation. The X-ray intensity peak is near the inner radio shell. The X-ray spectrum is well-fitted by a single component of the non-equilibrium ionization condition model with about 0.7-times the solar abundance. The plasma age estimated from the ionization parameter is only 3.3 × 103yr. The temperature is uniform ( ~ 0.7 keV ) while the density profile is approximated by a point symmetric Gaussian function. Comparing the Kes79 results with those of Kes27, a prototypical MMSNR, Kes79 may not belong to the MM type SNRs.

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