X-ray Gas Scintillation Spectrometer Experiment

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 8...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 1984-07, Vol.225 (4658), p.177-179
Main Authors: Andresen, R. D., Boella, G., Falconi, B., Lamb, P., Manzo, G., Raymont, J., Re, S., Sims, M. R., Villa, G.
Format: Article
Language:English
Subjects:
Astronomical and space-research instrumentation
Astronomy
Astronomy and Solar Physics
Collimation
Earth, ocean, space
Energy efficiency
Exact sciences and technology
Fundamental astronomy and astrophysics. Instrumentation, techniques, and astronomical observations
Nuclear spectroscopy
Proportional counters
Scintillation
Space science
Spacelab
Spectrometer
Spectrometers
X ray sources
X ray spectrometers
X ray spectrum
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Summary: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.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.225.4658.177