Kinematics of Orion Association Members
1995 ◽
Vol 164
◽
pp. 373-373
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.
1991 ◽
Vol 312
(3)
◽
pp. 197-200
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Keyword(s):
2007 ◽
Keyword(s):
2008 ◽
Vol 484
(3)
◽
pp. 887-895
◽
1989 ◽
Vol 136
◽
pp. 47-49
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1994 ◽
Vol 161
◽
pp. 453-459
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Keyword(s):
1994 ◽
Vol 161
◽
pp. 173-176
Keyword(s):
1981 ◽
Vol 196
(3)
◽
pp. 659-668
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