Multivariate statistical analysis of OB stars around H and Chi Persei

Details Multivariate statistical analysis of OB stars around H and Chi Persei Multivariate statistical analysis of OB stars around H and Chi Persei

Oct 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987afz....27..245b&link_type=abstract

Astrofizika (ISSN 0571-7132), vol. 27, Oct. 1987, p. 245-252.

Statistics

4

B Stars, Multivariate Statistical Analysis, O Stars, Star Clusters, Astronomical Catalogs, Cluster Analysis, Discriminant Analysis (Statistics), Radial Velocity, Spiral Galaxies

Scientific paper

A multivariate statistical analysis has been carried out on 49 OB stars having radial velocities and distance moduli in a field around h and Chi Persei. A hierarchical cluster analysis, combined with discriminant analysis, has revealed the probable presence of two groups: one belonging to the Perseus spiral arm (mean distance 2100 pc), the other located at a distance of 1150 pc. Comparison of the difference in mean radial velocities of the groups with the value predicted by the formula of Oort also supports the result obtained.

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