8.6k citations · 20.9k across the 86 of their papers we have counts for
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astro-ph2001★ 123 cited
Astrometric radial velocities III. Hipparcos measurements of nearby star clusters and associations
S. Madsen, D. Dravins, L. Lindegren
Radial motions of stars in nearby moving clusters are determined from accurate proper motions and trigonometric parallaxes, without any use of spectroscopy. Assuming that cluster m…
astro-ph2001★ 1.1k cited
GAIA: Composition, Formation and Evolution of the Galaxy
M. A. C. Perryman, K. S. de Boer, G. Gilmore +7
The GAIA astrometric mission has recently been approved as one of the next two `cornerstones' of ESA's science programme, with a launch date target of not later than mid-2012. GAIA…