On the binary nature of PLEIONE

Details On the binary nature of PLEIONE On the binary nature of PLEIONE

Apr 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...284..118l&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 284, no. 1, p. 118-124

Astronomy and Astrophysics

Astrophysics

7

Binary Stars, Orbital Mechanics, Radial Velocity, Shell Stars, B Stars, Elliptical Orbits, Stellar Mass

Scientific paper

From analysis of radial velocity measurements the binary nautre of Pleione is discussed. A possible orbital period of about 35 yr was detected. This value also coincides with the variations of the spectral properties of the star (shell - non-shell phase). An elliptical orbit of high eccentricity (e greater than 0.75) is probable. The mass of the companion is probably not smaller than about 2.5 solar mass.

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