A 12 Year Photometric Study of Lower Main-Sequence Hyades Stars

Details A 12 Year Photometric Study of Lower Main-Sequence Hyades Stars A 12 Year Photometric Study of Lower Main-Sequence Hyades Stars

Oct 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995apj...452..332r&link_type=abstract

Astrophysical Journal v.452, p.332

Astronomy and Astrophysics

Astronomy

33

Galaxy: Open Clusters And Associations: Individual Name: Hyades, Stars: Activity, Stars: Late-Type, Stars: Rotation

Scientific paper

Between late 1980 and early 1992, we obtained differential Strömgren b and y photometric observations of 13 Hyades stars, spectral types F5 V to K4 V. The observations achieved and sustained millimagnitude precis1on. All 10 G- and K-type stars in our sample varied on timescales ranging from days to years. These 10 stars tended to show stronger night-to-night variation, and they also tended to be redder, during seasons when they were fainter. Rotational modulation proved to be a prominent component of the night-to-night variation.

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