Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ssrv...40..475k&link_type=abstract
(ESA, ESLAB Symposium on X-Ray Astronomy in the EXOSAT Era, 18th, The Hague, Netherlands, Nov. 5-9, 1984) Space Science Reviews
Astronomy and Astrophysics
Astronomy
1
Exosat Satellite, Radio Sources (Astronomy), Satellite Observation, Supernova Remnants, Astronomical Maps, Chronology, Neutron Stars, Satellite-Borne Instruments
Scientific paper
Exosat PSD images and spectra are presented of the supernova remnant (SNR) PKS 1209-52 (G296.5+9.7. Milne 23). This source was observed for 8.5 hours in June, 1983. PSD images constructed in different energy intervals reveal that the spatial structure of the SNR is energy dependent. Comparison of the PSD and CMA images with the latest radio map of PKS 1209-52 shows some interesting correlations, especially between the X-ray and radio 'Hot Spots'. The PSD spectrum of the SNR is fitted wih a Raymond and Smith line-emission model: the best fit temperature is found to be 1.7 x 10 to the 6th K and the absorbing column is less than 2 x 10 to the 21st per sq cm. A compact X-ray source lies within the radio shell of PKS 1209-52, near the center of the remnant. The PSD spectrum of this object is somewhat harder than that of the SNR, but does not require a significantly different absorbing column density. The possible association of the SNR and the compact object is briefly discussed.
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