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Photometric Variations of Solar Type Stars

Published online by Cambridge University Press:  12 April 2016

Richard R. Radick*
Affiliation:
Air Force Phillips Laboratory, Solar Research Branch, Sunspot, NM 88349, USA

Abstract

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High precision measurements of photometric variability among solar type stars have now been made since 1980. These observations clearly show that year-to-year brightness variations connected with magnetic activity are a widespread phenomenon among such stars. They also suggest that the Sun’s potential for long-term white light variability may be significantly understated by measurements of solar total irradiance during the 1980s.

Type
Observational Programs for Solar and Stellar Irradiance Variability
Copyright
Copyright © Kluwer 1994

References

Duncan, D.K., Vaughan, A.H., Wilson, O.C., Preston, G.W., Frazer, J., Lanning, H., Misch, A., Mueller, J., Soyumer, D., Woodard, L., Baliunas, S.L., Noyes, R.W., Hartmann, L.W., Porter, A., Zwaan, C., Middelkoop, F., Rutten, R.G.M. & Mihalas, D. 1991 Ca II H and K measurements made at Mount Wilson Observatory, 1966-1983, Astrophys. J. Suppl. 76, 383430.CrossRefGoogle Scholar
Foukal, P.V. & Lean, J. 1988 Magnetic modulation of solar luminosity by photospheric activity. Astrophys. J. 328 347357.Google Scholar
Keil, S.L. 1992 Private communication.Google Scholar
Livingston, W.C. 1992 Private communication.Google Scholar
Lockwood, G.W. 1994 Irradiance Observations of Stars. In The Sun as a Variable Star: Solar and Stellar Irradiance Variations (ed. Pap, J.M., Fröhlich, C., Hudson, H.S., &; Solanki, S.K.). Cambridge University Press, in press.Google Scholar
Lockwood, G.W., Skiff, B.A., Baliunas, S.L. & Radick, R.R. 1992 Long-term solar brightness changes estimated from a survey of Sun-like stars. Nature 360, 653655.Google Scholar
Radick, R.R. 1991 The luminosity variability of solar-typ e stars. In The Sun in Time (ed. Sonett, C.P., Giampapa, M.S., & Matthews, M.S.), pp. 787808. Univ. of Arizona Press, Tucson, AZ, USA.Google Scholar
Radick, R.R. 1992 Luminosity variability of lower main-sequence stars. In The Solar Cycle (ed. Harvey, K.L.). Astronomical Society of the Pacific Conference Series 27, pp. 450464.Google Scholar
Radick, R.R., Lockwood, G.W. & Baliunas, S.L. 1990 Stellar activity and brightness variations: a glimpse at the Sun’s history. Science 247, 3944.Google Scholar
Wilson, O.C. 1978 Chromospheric variations in main-sequence stars. Astrophys. J. 226, 379396.Google Scholar
Willson, R.C. 1992 Private communication.Google Scholar