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has been cited by the following article:

• TITLE: On chromospheric variations modeling for main-sequence stars of G and K spectral classes

  AUTHORS: E. A Bruevich

  KEYWORDS: The Sun; Late-Type Stars; Chromospheric Emission

  JOURNAL NAME: Natural Science, Vol.3 No.8, August 3, 2011

  ABSTRACT: We present a method of 13 late-type main-sequence stars chromospheric flux observation data calculations. These Sun-like stars have well-determined cyclic flux variations similar to the 11-year solar activity cycle. Our flux prediction is based on chromospheric HK emission time series measurements from the Mount Wilson Observatory and comparable solar data. We show that solar three - component modeling explains well the stellar observations. We find that the 10 - 20% of K - stars disc’s surfaces are occupied by bright active regions.