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Sun-as-a-star: Its Convective Signature and the Activity Cycle
Published online by Cambridge University Press: 12 April 2016
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.
- Type
- Part III Solar magnetism and large-scale flows
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- Copyright © Springer-Verlag 1991