The Photometric Variability of Sun-like Stars: Observations and Results, 1984--1995

Details The Photometric Variability of Sun-like Stars: Observations and Results, 1984--1995 The Photometric Variability of Sun-like Stars: Observations and Results, 1984--1995

Aug 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997apj...485..789l&link_type=abstract

Astrophysical Journal v.485, p.789

Other

61

Stars: Activity, Stars: Late-Type, Stars: Variables: Other

Scientific paper

Using differential Stromgren b, y photometry, we monitored the brightness variations of 41 program stars and their 73 comparison stars from 1984 through 1995. The predominantly main-sequence program stars spanned ranges of temperature and mean chromospheric activity centered on solar values. About 40% of all the stars showed measurable variability, typically at levels below 0.01 mag (~1%), on both night-to-night and year-to-year timescales. The variability correlated with mean chromospheric activity and advancing spectral type. We present differential light curves and statistical descriptions of our observations.

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