Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...308l..59b&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 308, Sept. 15, 1986, p. L59-L62.
Astronomy and Astrophysics
Astronomy
64
Astronomical Spectroscopy, Background Radiation, Diffuse Radiation, Interstellar Matter, X Ray Astronomy, Milky Way Galaxy, Plasma Temperature, Rocket-Borne Instruments, Sky Surveys (Astronomy), Vertical Distribution
Scientific paper
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.
Bloch Jacqueline
Jahoda Keith
Juda Michael
McCammon Dan
Sanders Wilton T.
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