Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995apj...439..715s&link_type=abstract
The Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 439, no. 2, p. 715-721
Astronomy and Astrophysics
Astronomy
13
Interstellar Matter, Radio Observation, Stellar Envelopes, Supernova Remnants, X Ray Astronomy, X Ray Spectra, Astronomical Models, Brightness, Emission Spectra, Luminosity, Rosat Mission, Shock Wave Luminescence, Spectrum Analysis
Scientific paper
Kes 79 was observed with the ROSAT Position Sensitive Proportional Counter (PSPC) and High Resolution Imager (HRI). Some X-ray emission comes from a faint outer region, well correlated with the outer shell. Most emission is from a bright diffuse inner region where there are also bright radio filaments. The X-ray spectrum is fitted with a thermal model with temperature 1.3 keV. Variations in spectra from different regions are small. There is no X-ray evidence for an internal neutron star. Remnant characteristics are derived using a simple blast-wave model. The observed X-ray absorption is less than expected. It is possible that the remnant is closer than the published distance of 10 kpc.
Seward Frederick D.
Velusamy Thangasamy
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