Observations of the soft X-ray diffuse background at 0.1 keV

The results of a sounding rocket flight that observed the very soft X-ray diffuse background in a section of the northern Galactic hemisphere are presented. The ratio of the measured Be band count rates to the Wisconsin sky survey B band count rates is nearly constant over a 120 deg arc on the sky,...

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Bibliographic Details
Published inThe Astrophysical journal Vol. 308; no. 2; pp. L59 - L62
Main Authors Bloch, J. J., Jahoda, K., Juda, M., Mccammon, D., Sanders, W. T.
Format Journal Article
LanguageEnglish
Published Legacy CDMS University of Chicago Press 15.09.1986
Subjects
Astronomy
Astrophysics
Characteristics and properties of the milky way
Earth, ocean, space
Exact sciences and technology
Stellar systems. Galactic and extragalactic objects and systems. The universe
Galaxy
Soft X ray
Background radiation
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Summary:The results of a sounding rocket flight that observed the very soft X-ray diffuse background in a section of the northern Galactic hemisphere are presented. The ratio of the measured Be band count rates to the Wisconsin sky survey B band count rates is nearly constant over a 120 deg arc on the sky, strongly suggesting a common emission mechanism for both Be and B band X-rays. The mean free path is about seven times smaller for the Be band than for the B band. The present results imply that the neutral hydrogen column density between the emitting material and the earth varies by less than 2 x 10 to the 18th H I/sq cm over the observed region. It is concluded that such variations are unlikely unless the total intervening column density is less than a few times this value.
Bibliography:CDMS
Legacy CDMS
ISSN:0004-637X
1538-4357
DOI:10.1086/184744