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The Oort Constants Measured from Proper Motions

ASTROPHYSICAL JOURNAL, no. 1 (2003): 275-296

Cited by: 79|Views5

Abstract

The Oort constants describe the local spatial variations of the stellar streaming field. The classic way for their determination employs their effect on stellar proper motions. We discuss various problems arising in this procedure. A large, hitherto apparently overlooked, source of potential systematic error arises from longitudinal varia...More

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