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The Photometric Variability of Sun‐like Stars: Observations and Results, 1984–1995
- Source :
- The Astrophysical Journal. 485:789-811
- Publication Year :
- 1997
- Publisher :
- American Astronomical Society, 1997.
-
Abstract
- 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.
Details
- ISSN :
- 15384357 and 0004637X
- Volume :
- 485
- Database :
- OpenAIRE
- Journal :
- The Astrophysical Journal
- Accession number :
- edsair.doi...........5ee127d3dc3f5d9a7847308b90e0921c