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Does a Common Dynamo Mechanism Exist for Lower Main Sequence Stars ?

  • R. B. Teplitskaya
  • V. G. Skochilov
Conference paper
Part of the International Astronomical Union book series (IAUS, volume 138)

Abstract

Based on an extended list of lower main sequence stars from Rutten (1987), the relation between chromospheric activity and Rossby number has been revised. The increased statistics changes the shape of the curve as compared with that of Noyes et al. (1984). The saturation at small Rossby numbers has disappeared. The dependence on Rossby number in the range of very large Rossby numbers has weakened. The standard deviation of the activity indices from the mean curve is about 40%. This scatter of individual stars is not due to differences in the spectral type or age of the stars.

Keywords

Spectral Type Main Sequence Star Rossby Number Dynamo Action Individual Star 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© International Astronomical Union 1990

Authors and Affiliations

  • R. B. Teplitskaya
    • 1
  • V. G. Skochilov
    • 1
  1. 1.SibIZMIRUSSR

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