Abstract
view Abstract Citations (33) References (23) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Discovery of X-ray emission from two southern supernova remnants. Tuohy, I. R. ; Mason, K. O. ; Clark, D. H. ; Córdova, F. A. ; Charles, P. A. ; Walter, F. M. ; Garmire, G. P. Abstract Two soft X-ray sources positionally coincident with the supernova remnants PKS 1209-52 and RCW 103 have been discovered by using the A-2 experiment on HEAO 1. Their measured fluxes are, respectively, about 1.4 x 10 to the -10th erg/cm-sec (0.2-1.0 keV) and about 1.8 x 10 to the -10th erg/cm-sec (0.6-2.0 keV). Spectral data are used to derive physical parameters for each remnant. For PKS 1209-52 the parameters are suggestive of the remnant's being in an advanced evolutionary phase, with shock-heated interstellar material producing the soft X-ray emission. RCW 103, in contrast, is known from radio and optical data to be in an earlier evolutionary phase, and the soft X-ray flux is most likely due to emission originating in a reflected shock wave or in plasma evaporated from shock-heated interstellar clouds. Publication: The Astrophysical Journal Pub Date: May 1979 DOI: 10.1086/182955 Bibcode: 1979ApJ...230L..27T Keywords: Interstellar Gas; Shock Heating; Supernova Remnants; X Ray Sources; Astronomical Models; Heao 1; Nebulae; Shock Waves; Astronomy; Supernova Remnants:X-Ray Spectra full text sources ADS | data products SIMBAD (2)
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