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Proper Motions of Local Group Satellites

Published online by Cambridge University Press:  25 May 2016

Mike Irwin
Mike Irwin*
Affiliation:
IoA, Madingley Road, Cambridge CB3 0HA, UK

Abstract

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Many direct attempts to measure the proper motions of Galactic satellite galaxies are either in progress or have recently been completed. In this review I will summarise and examine the current state of knowledge in this field and will also highlight several indirect methods that can be used as alternative estimators or constraints on the proper motions of satellite galaxies throughout the Local Group. A good example of this latter approach is provided by the Sagittarius dwarf galaxy, where ongoing tidal disruption of the system has left a giant arc of debris tracing out its orbital path.

Type
Part 4. Morphology, Kinematics and Dynamics
Information
Symposium - International Astronomical Union , Volume 192: The Stellar Content of Local Group Galaxies , 1999 , pp. 409 - 419
Copyright
Copyright © Astronomical Society of the Pacific 1999 

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