Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...118..102g&link_type=abstract
Astronomy and Astrophysics, vol. 118, no. 1, Feb. 1983, p. 102-106. Research supported by the Ministerium für Wissenschaft und
Astronomy and Astrophysics
Astrophysics
6
B Stars, O Stars, Open Clusters, Radial Velocity, Stellar Motions, Frequency Distribution, Spatial Distribution
Scientific paper
Relative radial velocities have been obtained for 66 stars of the clustering Cr 70 in the Orion Belt region. The peculiar frequency distribution of the radial velocities is discussed. Their conspicuous systematical spatial distribution corresponds perfectly to the gradient of distance moduli found by Hardie et al. (1964). Therefore the presence of two additional subgroupings in the Ori OB 1 association is proposed. Comparison with the radial velocities in the various subgroups of the Ori OB 1 complex as defined by Blaauw (1964) does not yet reveal a consistent kinematical picture.
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