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The Search for Unwanted Signals: Systematic Trends in Proper Motions of Fundamental Stars

Published online by Cambridge University Press:  04 August 2017

P. Brosche  and
H. Schwan
P. Brosche
Affiliation:
Observatorium Hoher List der Universitäts-Sternwarte Bonn, D-5568 Daun, F.R. of Germany
H. Schwan
Affiliation:
Astronomisches Recheninstitut, Mönchhofstr. 12-14 D-6900 Heidelberg, F.R. of Germany

Abstract

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An investigation of the N30 along the same lines as that of the FK4 (Brosche and Schwan 1981) reveals quite similar non-standard systematic motions. Some consequences are indicated for the determination of cluster parallaxes, of secular parallaxes and of the galactic rotation. In general, we stress the necessity of always searching for every signal in the data - including those ones which are not understood and hence not ‘wanted’.

Type
I. Reduction Technique
Information
Symposium - International Astronomical Union , Volume 109: Astrometric Techniques , 1986 , pp. 53 - 62
Copyright
Copyright © Reidel 1986 

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