title: Astronomy and Solar Physics: X-ray Gas Scintillation Spectrometer Experiment.
abstract: The payload complement on Spacelab 1 included a spectrometer for observations of the brighter cosmic x-ray sources. The primary scientific objective was to study the detailed spectral features of cosmic x-ray sources and their associated temporal variations over a wide energy range from about 2 to 80 kiloelectron volts. The instrument, based on the gas scintillation proportional counter, had a geometrical area of some 180 square centimeters with an energy resolution of about 9 percent at 7 kiloelectron volts. The results presented here show new results from two galactic binary x-ray sources, Cygnus X-3 and Centaurus X-3, and from the Perseus cluster of galaxies. The excellent energy resolution of the instrument permits line features to be identified in these sources with unprecedented quality.
authors.forename: R D
authors.initials: RD
authors.lastname: Andresen
authors.forename: G
authors.initials: G
authors.lastname: Boella
authors.forename: B
authors.initials: B
authors.lastname: Falconi
authors.forename: P
authors.initials: P
authors.lastname: Lamb
authors.forename: G
authors.initials: G
authors.lastname: Manzo
authors.forename: J
authors.initials: J
authors.lastname: Raymont
authors.forename: S
authors.initials: S
authors.lastname: Re
authors.forename: M R
authors.initials: MR
authors.lastname: Sims
authors.forename: G
authors.initials: G
authors.lastname: Villa