Computer Science – Sound
Scientific paper
Aug 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978mnras.184..509s&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 184, Aug. 1978, p. 509-522. Research supported by the Science Research
Computer Science
Sound
10
Emission Spectra, Interstellar Gas, Nebulae, Rocket Sounding, X Ray Astronomy, Adiabatic Conditions, Electron Density (Concentration), Plasma Heating, Plasma Temperature, Recombination Coefficient, Shock Heating, Skylark Rocket Vehicle, Spaceborne Astronomy, X Ray Spectroscopy
Scientific paper
In connection with the reported investigation, a large area crystal spectrometer was constructed for a flight on a Skylark sounding rocket (SL 1212). The attitude control unit used was a stage V star pointing system. Xi Cygnus was employed as the guide star. SL 1212 was launched from the Woomera range, South Australia on June 11, 1977. The data obtained in the investigation reveal that the flux in the selected O VII emission lines is less than 6% of the total X-ray emission from the source. The result implies that the temperatures characteristic of the considered models are higher than has previously been determined from X-ray continuum studies of the source. It is possible that the oxygen abundance is depleted from the generally assumed cosmic value.
Culhane Leonard J.
Stark P. W. J.
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