NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Distribution of gas in the halo of the galaxyResults are presented from a high-resolution, ultraviolet study of interstellar gas situated away from the plane of the Milky Way Galaxy, using the nuclei of Seyfert galaxies Mkn 509 and F9 as background probes. In these directions, low-velocity, galactic gas were detected as well as two extragalactic clouds, one probably associated with the Magellanic Stream and the other with Mkn 509. These data were combined with results from other lines of sight to show that the ultraviolet species extend about 10 kpc from the plane, assuming the high-latitude gas corotates with the galactic disk. Complimentary observations of the optical Ca II and Na I species suggests that these do not extend as far - perhaps 2 to 3 kpc from the plane. Further, the exceedingly complex velocity structure found only in Magellanic Cloud directions suggests that these sight-lines are not typical of high-latitude gas in general.
Document ID
19820023343
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Blades, J. C.
(Science Research Council Chilton, United Kingdom)
Cowie, L. L.
(MIT)
Morton, D. C.
(Anglo-Australian Observatory)
York, D. G.
(Princeton Univ.)
Wu, C. C.
(Computer Sciences Corp.)
Date Acquired
August 10, 2013
Publication Date
January 1, 1982
Publication Information
Publication: NASA. Goddard Space Flight Center Advan. in Ultraviolet Astron.
Subject Category
Astronomy
Accession Number
82N31219
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

There are no available downloads for this record.
No Preview Available