Long-term Photometric Variation of Rapidly Rotating Young Open Cluster Stars

Details Long-term Photometric Variation of Rapidly Rotating Young Open Cluster Stars Long-term Photometric Variation of Rapidly Rotating Young Open Cluster Stars

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...198.4606g&link_type=abstract

American Astronomical Society, 198th AAS Meeting, #46.06; Bulletin of the American Astronomical Society, Vol. 33, p.848

Astronomy and Astrophysics

Astronomy

Scientific paper

We present analyses of long-term photometric variation of four rapidly rotating stars of spectral type K in the Pleiades and alpha Persei clusters. These young stars (approx. ZAMS) are known to have rotational light curves with amplitudes of a few per-cent due to large "starspots" and photospheric active regions. The data show multi-year trends possibly representing analogs to the solar sunspot cycle. Our observations were made at the National Undergraduate Research Observatory (NURO) which is operated by Lowell Observatory. We thank the NASA Space Grant Colleges program for support.

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