activity
19962005
most citedAbsolute Proper Motions of Open Clusters: I. Observational data

111 citations · 156 across the 13 of their papers we have counts for

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Showing 1998Show all

5 papers · 1 filter

astro-ph1998

A Comparison of ground-based Cepheid P-L Relations with HIPPARCOS Parallaxes

H. Baumgardt, C. Dettbarn, B. Fuchs +2

The statistical test described by Wielen et al.(1994) is used to derive new zero-points of ground-based Cepheid period-luminosity (PL) and period-luminosity-colour (PLC) relations.…

astro-ph1998

The combination of ground-based astrometric compilation catalogues with the HIPPARCOS Catalogue I. Single-star mode

R. Wielen, H. Lenhardt, H. Schwan +1

The combination of ground-based astrometric compilation catalogues, such as the FK5 or the GC, with the results of the ESA Astrometric Satellite HIPPARCOS produces for many thousan…

astro-ph1998★ 6 cited

Kinematics of nearby subdwarfs

B. Fuchs, H. Jahreiss, R. Wielen

A sample of subdwarfs with accurate space velocities and standarized metallicities is presented. This was constructed by combining Hipparcos parallaxes ond proper motions with radi…

astro-ph1998★ 3 cited

The Sixth Catalogue of Fundamental Stars (FK6) and the Problem of Double Stars

R. Wielen, H. Schwan, C. Dettbarn +2

The Sixth Catalogue of Fundamental Stars (FK6) combines the ground-based astrometric data of the basic fundamental stars, obtained over more than two centuries and summarized in th…

astro-ph1998

The Combination of HIPPARCOS Data with Ground-Based Astrometric Measurements

R. Wielen, H. Schwan, C. Dettbarn +2

The combination of HIPPARCOS measurements with suitable ground-based astrometric data improves significantly the accuracy of the proper motions of bright stars. The comparison of b…