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Kinematics of Orion Association Members

Published online by Cambridge University Press:  07 August 2017

R.L. Smart
R.L. Smart*
Affiliation:
Space Telescope and Science Institute

Extract

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We discuss the determination of the expansion of the Orion association. Previous estimates of expansion in associations have employed simplified linear approximations which only required the observation of proper motions (cf. Lesh, J.R., ApJ, 152, 905, 1968). We have used proper motions obtained by Smart (PhD Thesis, Univ. of Florida, 1993) with previously obtained membership criteria to investigate this hypothesised expansion without conclusive results.

Type
Poster Papers
Information
Symposium - International Astronomical Union , Volume 164: Stellar Populations , 1995 , pp. 373
Copyright
Copyright © Kluwer 1995