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Galactic Kinematics on the Basis of Modern Proper Motion Data

Published online by Cambridge University Press:  07 August 2017

M. Miyamoto
M. Miyamoto*
Affiliation:
National Astronomical Observatory Mitaka, Tokyo 181, Japan

Abstract

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An accumulation of high precision astrometric data in conjunction with high-precision monitoring of the Earth's orientation, motivates “Galactic Astronomy”. As regards local kinematics, all of the three components of both the vorticity and the shear of stars can be completely determined, in addition to the velocity ellipsoid. We can now be released from the constraint of the “axisymmetric” galaxy. The determination of the proper motion of the LMC will be crucial to understanding the global structure and dynamics of the Galaxy with the dark halo and MACHO's motions.

Type
2. Current and Future Needs for Very Accurate Astrometry
Information
Symposium - International Astronomical Union , Volume 166: Astronomical and Astrophysical Objectives of Sub-Milliarcsecond Optical Astrometry , 1995 , pp. 217 - 226
Copyright
Copyright © Kluwer 1995 

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