Synthesis maps of ultraviolet observations of neutral interstellar gas

Details Synthesis maps of ultraviolet observations of neutral interstellar gas Synthesis maps of ultraviolet observations of neutral interstellar gas

Aug 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...271l..59f&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 271, Aug. 15, 1983, p. L59-L63.

Astronomy and Astrophysics

Astronomy

200

Astronomical Maps, Interstellar Gas, Neutral Gases, Ultraviolet Astronomy, B Stars, Hydrogen, Iue, Mass Distribution, Oao 3, Spaceborne Astronomy

Scientific paper

Copernicus and IUE measurements of neutral hydrogen column densities have been taken for about 140 stars distributed between 10 and 3000 pc from the sun and plotted in several maps to directly yield estimates of contours of neutral hydrogen column density in the 5-500 x 10 to the 17th/sq cm range. These maps show that low column density neutral hydrogen is asymmetrically distributed around the sun with a 'hole' in the neutral hydrogen located in the third quadrant. This distribution mirrors that of nearby B stars associated with the Gould belt. The maps clearly show the directions in which observations at wavelengths less than 912 A will be most successful.

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