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Mapping Small Scale Structure in Galactic H ɪ with the VLBA

Published online by Cambridge University Press:  12 April 2016

M. D. Faison
Affiliation:
University of Wisconsin, Astronomy Department, Madison, WI 53706, U.S.A.
W. M. Goss
Affiliation:
National Radio Astronomy Observatory, Socorro, NM 87801, U.S.A.
P. J. Diamond
Affiliation:
National Radio Astronomy Observatory, Socorro, NM 87801, U.S.A.

Abstract

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We present the first VLBA maps of Galactic H ɪ opacity towards the QSO 3C 138. The maps show significant opacity structure down to angular scales of 20 mas, which implies density structures in the cold neutral medium on physical scales of 10 AU or less

Type
Research Article
Copyright
Copyright © Astronomical Society of the Pacific 1998

References

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