Rotation periods of open-cluster stars, 3

Details Rotation periods of open-cluster stars, 3 Rotation periods of open-cluster stars, 3

Mar 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995pasp..107..211p&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 107, no. 709, p. 211-218

Astronomy and Astrophysics

Astronomy

78

Dwarf Stars, G Stars, K Stars, Open Clusters, Stellar Rotation, Stellar Spectrophotometry, X Ray Astronomy, X Ray Spectra, Angular Velocity, Color-Color Diagram, Data Correlation, Data Reduction, Light Curve, T Tauri Stars

Scientific paper

We present the results from a photometric monitoring program of 15 open cluster stars and one weak-lined T Tauri star during late 1993/early 1994. Several show rotators which are members of the Alpha Persei, Pleiades, and Hyades open clusters have been monitored and period estimates derived. Using all available Pleiades stars with photometric periods together with current X-ray flux measurements, we illustrate the X-ray activity/rotation relation among Pleiades late-G/K dwarfs. The data show a clear break in the rotation-activity relation around P approximately 6-7 days -- in general accordance with previous results using more heterogeneous samples of G/K stars.

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