Investigation of the Pleiades cluster. II : Binary stars in the F5-K0 spectral region

Coravel observations of 100 F5-K0 stars in the Pleiades cluster yielded 13 spectroscopic binary stars, and 11 orbits were determined. All 11 periods are shorter than 1000 days and the longest circular period is 7.05 days. One single-lined spectroscopic binary belongs to a triple system, the orbital motion of which has been detected. Based on a complete sample in the colour range 0.40

Keywords:

• Pleiades
• Astrophysics
• Stars
• Binary star
• Radial velocity
• Open cluster
• Orbital motion
• Physics
• Astronomy
• Apparent magnitude
• Photometry (optics)

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