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Ultraviolet Absorption Line Studies of Halo Gas

Published online by Cambridge University Press:  12 April 2016

Klaas S. de Boer
Klaas S. de Boer*
Affiliation:
Sternwarte, University of Bonn, Auf dem Hügel 71, D-53121 Bonn

Abstract

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The status of halo studies using UV absorption lines is assessed. Sin absorption is essentially only seen from gas with z ≤ 1 kpc, and shows a modest flow toward the galactic disk. CIV shows diffuse absorption in general only from gas with z ≥ 1 kpc with predominantly negative velocities. Three exceptional cases of gas showing CIV absorption without absorption by neutral components are discussed. Outflowing gas has not been detected thusfar.

Type
Part VII Gas in Superbubbles and in the Galactic Halo
Information
International Astronomical Union Colloquium , Volume 166: The Local Bubble and Beyond , 1997 , pp. 433 - 441
Copyright
Copyright © Springer-Verlag 1998

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