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Solar Physics

, Volume 218, Issue 1–2, pp 307–317 | Cite as

Periodicities of the de la rue Sunspot Area Measurements

  • J.M. Vaquero
  • M.C. Gallego
  • F. Sánchez-bajo
Article

Abstract

In the 19th century De la Rue, Stewart, and Loewy carried out a compilation of drawings and photographs of the solar sunspots corresponding to the interval 1832–1868. Using these drawings and photographs, they determined fortnightly values of the percentage of the solar photosphere covered by the sunspots. In this work, we have performed a spectral analysis of these data in order to determine possible periodic signals. In addition to the 11-year solar cycle, short cycles of about 330 days and 30–50 days have been recovered, lacking the 150–160 days period discovered by other authors using several solar activity indicators.

Keywords

19th Century Spectral Analysis Solar Activity Solar Cycle Area Measurement 
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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References

  1. Ballester, J. L., Oliver, R., and Baudin, F.: 1999, Astrophys. J. 522, 153.Google Scholar
  2. Ballester, J. L., Oliver, R., and Carbonell, M.: 2002, Astrophys. J. 566, 505.Google Scholar
  3. Carbonell, M. and Ballester, J. L.: 1992, Astron. Astrophys. 255, 350.Google Scholar
  4. Combes, J. M., Grossmann, A., and Tchamitchian, P. (eds.): 1989, Wavelets, Time-Frequency Method and Phase Space, 1st International Wavelet Conference, Marseille, Springer-Verlag, New York.Google Scholar
  5. De la Rue, W., Stewart, B., and Loewy, B.: 1869, Phil. Trans. 159, 1.Google Scholar
  6. De la Rue, W., Stewart, B., and Loewy, B.: 1870, Phil. Trans. 160, 389.Google Scholar
  7. Farge, M.: 1992, Ann. Rev. Fluid Mech. 24, 395.Google Scholar
  8. Kane, R. P.: 2003, J. Atmos. Solar-Terrest. Phys. 65, 979.Google Scholar
  9. Mann, M. E. and Less, J. M.: 1996, Climatic Change 33, 409.Google Scholar
  10. Meyer, Y.: 1989, Ondelettes et Opérateurs I: Ondelettes, Hermann, Paris.Google Scholar
  11. Park, J., Lindberg, C. R., and Vernon, F. L.: 1987, J. Geophys. Res. 92, 12675.Google Scholar
  12. Slepian, S.: 1978, Bell. Syst. Tech. J. 57, 1371.Google Scholar
  13. Thomson, D. J.: 1982, Proc. IEEE 70, 1055.Google Scholar
  14. Torrence, C. and Compo, G. P.: 1998, Bull. Am. Meteorol. Soc. 79, 61.Google Scholar
  15. Vaquero, J. M., Sánchez-Bajo, F., and Gallego, M. C.: 2002, Solar Phys. 209, 311.Google Scholar

Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • J.M. Vaquero
    • 1
  • M.C. Gallego
    • 2
  • F. Sánchez-bajo
    • 3
  1. 1.Departamento de Física, Escuela PolitécnicaUniversidad de ExtremaduraCáceresSpain
  2. 2.Departamento de Física, Facultad de CienciasUniversidad de ExtremaduraBadajozSpain
  3. 3.Departamento de Electrónica e Ingeniería Electromecánica, Escuela de Ingenierías IndustrialesUniversidad de ExtremaduraBadajozSpain

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