Observations of spotted solar-type stars in the Pleiades

Details Observations of spotted solar-type stars in the Pleiades Observations of spotted solar-type stars in the Pleiades

Dec 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987pazh...13.1071m&link_type=abstract

Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 13, Dec. 1987, p. 1071-1079. In Russian. In Russian. In Russian.

Astronomy and Astrophysics

Astronomy

1

Spectral Energy Distribution, Star Clusters, Stellar Evolution, Stellar Rotation, Stellar Spectrophotometry, Angular Velocity, Stellar Luminosity, Stellar Mass, Stellar Orbits

Scientific paper

The September - October 1986 observations discovered periodic light variations in three solar-type stars in the Pleiades cluster: Hz 296 (0.8 M_sun;), Hz 152 (0.91 M_sun;) and Hz 739 (1.15 M_sun;). Periods and amplitudes are accordingly 2d.53 and 0m.11, 4d.12 and 0m.07, 2d.70 and 0m.05. Considerable light variations of these stars in the Pleiades are due to the rotation of spotted stars. Contrast spots of solar-type stars likely exist when stars are young and rapidly rotate.

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