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The proper-motion signal of unresolved binaries in the Hipparcos catalogue

✍ Scribed by M. Odenkirchen; P. Brosche

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
342 KB
Volume
320
Category
Article
ISSN
0004-6337

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## Abstract 36 objects with mainly negative (__Uβ€”B__) indices were investigated for variability and proper motions. 10 objects with significant or suspected proper motions and 8 variable objects were detected. Using these criteria, it was possible to separate white dwarfs from quasi‐stellar objects