Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979ap%26ss..63..467b&link_type=abstract
Astrophysics and Space Science, vol. 63, no. 2, July 1979, p. 467-477.
Astronomy and Astrophysics
Astrophysics
6
Binary Stars, Milky Way Galaxy, Pleiades Cluster, Star Clusters, Astronomical Catalogs, Graphs (Charts), Star Distribution, Tables (Data)
Scientific paper
The numbers and distributions of wide binary stars in the Pleiades star cluster are compared with those of the solar neighborhood. The numbers of distances between stars in Hertzsprung's (1947) catalog of stars in the inner region of the Pleiades lying within given intervals were counted and compared with the expected numbers of optical pairs for a random distribution of stars in order to obtain the number of visual binaries. For both a parametric representation of stars in the solar neighborhood and a selection of the nearby binaries with magnitudes greater than that corresponding to the limit of 16 at the distance of the Pleiades, it is found that the magnitude and distance statistics of the two regions are in general agreement. The only significant deviation is the deficit of systems with fainter companions in the Pleiades compared with local stars.
Brosche Peter
Hoffmann Marc
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