Binary stars in Praesepe

Details Binary stars in Praesepe Binary stars in Praesepe

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992mnras.259..223k&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 259, no. 2, p. 223-232.

Astronomy and Astrophysics

Astronomy

16

Binary Stars, Praesepe Star Clusters, Star Distribution, Stellar Luminosity, Color-Magnitude Diagram, Hertzsprung-Russell Diagram, Stellar Mass

Scientific paper

We consider the luminosity function and the distribution of stars in the color-magnitude diagram for Praesepe. The luminosity function is consistent with the solar neighborhood function but is not sufficiently complete at faint magnitudes to constrain binary system properties. The color-magnitude data are consistent with a large binary population. Systems with B - V in the range 1.0 to 0.8 seem to favor uncorrelated masses while bluer systems tend toward equal masses. Redder than B - V of about 1.0, the data are not good enough to analyze the effects of binary stars.

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