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The photospheric magnetic fields of cool stars: Recent results of survey and time-variability programs

  • Steven H. Saar
Stellar Magnetic Fields
Part of the Lecture Notes in Physics book series (LNP, volume 291)

Abstract

The past decade has seen considerable advances in our ability to measure magnetic fields on cool stars. New observational and analytical techniques have been employed, producing a considerable body of data on the mean magnetic field strength in stellar active regions (B) and the fraction (filling factor = f) of the stellar surface covered by these fields (f) for G, K, and M dwarfs. I focus on some of the recent results of observational programs aimed at surveying magnetic parameters on a broad range of stars and studying the time-variability of B and f.

Keywords

Magnetic Flux Filling Factor Magnetic Parameter Flux Tube Spectral Type 
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

© Springer-Verlag 1987

Authors and Affiliations

  • Steven H. Saar
    • 1
  1. 1.Joint Institute for Laboratory AstrophysicsUniversity of Colorado and the National Bureau of StandardsBoulder

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