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The age dependence of photospheric tracer rotation

  • The Sun:Structure Oscillations, Magnetic Cycle, Surface Variations
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Abstract

From the analysis of the motions of sunspot groups recorded at Catania Astrophysical Observatory over a 7-years period from 1972 to 1978 the mean angular velocity as a function of latitude and age is calculated. The results suggest that the age of photospheric tracer (sunspot groups) affects the rotation curve slope. The implications of this result are discussed.

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References

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Authors and Affiliations

  1. Osservatorio Astrofisico di Catania, Istituto di Astronomia dell' Università di Catania, Città Universitaria, V. le A. Doria, 95125, Catania, Italy

    M. Ternullo, R. A. Zappalà & F. Zuccarello

Authors
  1. M. Ternullo
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  2. R. A. Zappalà
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  3. F. Zuccarello
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Additional information

Proceedings of the 14th ESLAB Symposium on Physics of Solar Variations, 16–19 September 1980, Scheveningen, The Netherlands.

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Ternullo, M., Zappalà, R.A. & Zuccarello, F. The age dependence of photospheric tracer rotation. Sol Phys 74, 111–115 (1981). https://doi.org/10.1007/BF00151280

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  • DOI: https://doi.org/10.1007/BF00151280

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