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Low- and Intermediate-Velocity Hydrogen at Positive Galactic Latitudes

Published online by Cambridge University Press:  14 August 2015

K. Takakubo
K. Takakubo*
Affiliation:
Astronomical Institute, Tohoku University, Sandai, Japan

Abstract

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Low- and intermediate-velocity Gaussian components of hydrogen emission profiles observed at positive galactic latitudes are investigated. The low-velocity hole, as called by Wesselius and Fejes (1973), is a phenomenon which appears in the layer composed of the gas emitting narrow Gaussian components but does not in that of wide components. Both Models I and II suggested by Wesselius and Fejes contradict this result. A hypothesis is proposed that a stream motion in the layer emitting wide Gaussian components, which may be identified with the intercloud medium, swept away the interstellar clouds emitting narrow Gaussian components in the region of the hole.

Type
Part 6: Large-Scale Galactic Structure
Information
Symposium - International Astronomical Union , Volume 60: Galactic Radio Astronomy , 1974 , pp. 631 - 635
Copyright
Copyright © Reidel 1974 

References

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Tolbert, C. R.: 1971, Astron. Astrophys. Suppl. 3, 349.Google Scholar
Wesselius, P. R. and Fejes, I.: 1973, Astron. Astrophys. 24, 15.Google Scholar