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Where Does the Galaxy End?

Published online by Cambridge University Press:  25 May 2016

F.D.A. Hartwick
F.D.A. Hartwick*
Affiliation:
Department of Physics and Astronomy, University of Victoria, Victoria, B.C., Canada, V8W 3P6

Abstract

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The spatial distribution of the outlying satellites of the Galaxy has been determined by fitting a three dimensional surface to the positions of 10 companion galaxies and 13 distant globular clusters. Both groups show a highly flattened distribution whose minor axes are aligned to within ∼ 5°. The combined group of 23 objects shows a triaxial distribution with semimajor axis extending ∼ 400 kpc. The minor axis is inclined at ∼ 76° to the Galactic poles. There is a suggestion of a nested hierarchy consisting of satellite galaxies, globular clusters, and distant halo field stars, in order of decreasing spatial extension.

Type
Chapter 8: How do we put it together?
Information
Symposium - International Astronomical Union , Volume 169: Unsolved Problems of the Milky Way , 1996 , pp. 669 - 680
Copyright
Copyright © Kluwer 1996 

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