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Ultraviolet Observations of Halo Clouds

Published online by Cambridge University Press:  12 April 2016

Laura Danly  and
Chris Blades
Laura Danly
Affiliation:
Space Telescope Science Institute3700 San Martin Drive, Baltimore MD 21218
Chris Blades
Affiliation:
Space Telescope Science Institute3700 San Martin Drive, Baltimore MD 21218

Extract

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Since the earliest optical absorption line studies of Munch and Zirin (1961) identified clouds of gas located at large distances from the galactic plane, considerable effort has gone into trying to understand the origin and nature of Milky Way halo gas. Subsequent high resolution optical absorption studies (Albert 1981; Blades et al 1989) have expanded on the early results, demonstrating clearly that (1) halo clouds are more likely to have velocities outside the range allowed by galactic rotation and (2) halo clouds show smaller depletion of refractory elements compared to their disk counterparts (i.e. the Spitzer-Routley effect).

Type
VI. Interstellar Matter at High Galactic Latitudes
Information
International Astronomical Union Colloquium , Volume 120: Structure and Dynamics of the Interstellar Medium , 1989 , pp. 408 - 415
Copyright
Copyright © Springer-Verlag 1989

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