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Sun-as-a-star: Its convective signature and the activity cycle

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The Sun and Cool Stars: activity, magnetism, dynamos

Part of the book series: Lecture Notes in Physics ((LNP,volume 380))

Abstract

From May 1980 to April 1990 we have observed several times a year the solar irradiance spectrum from 5000Å to 6300Å using the 1-m Fourier Transform Spectrometer. During the ascending phase of the solar cycle, spectrum line asymmetry diminishes about 15% as the total magnetic field encreases. At some epoch near the time of total magnetic field maximum, line asymmetry ceases to track surface magnetism and abruptly assumes a value appropriate to solar minimum.

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Author information

Authors and Affiliations

  1. National Solar Observatory, P.O. Box 26732, 85726, Tucson, AZ

    W. Livingston

Authors
  1. W. Livingston
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Editor information

I. Tuominen D. Moss G. Rüdiger

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© 1991 Springer-Verlag

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Livingston, W. (1991). Sun-as-a-star: Its convective signature and the activity cycle. In: Tuominen, I., Moss, D., Rüdiger, G. (eds) The Sun and Cool Stars: activity, magnetism, dynamos. Lecture Notes in Physics, vol 380. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-53955-7_135

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  • DOI: https://doi.org/10.1007/3-540-53955-7_135

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-53955-1

  • Online ISBN: 978-3-540-46483-9

  • eBook Packages: Springer Book Archive

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