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Solar Activity Indices in the Cycles 21–23

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The Sun: New Challenges

Part of the book series: Astrophysics and Space Science Proceedings ((ASSSP,volume 30))

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Abstract

A stable cyclicity of correlation coefficients K corr for some solar activity indices versus F 10.7 was found after monthly averages values analysis. These indices are: Wolf numbers, 10.7 cm radio flux F 10.7, 0.1–0.8 nm background, the total solar irradiance (TSI), Mg II UV-index (280 nm core to wing ratio) and monthly flare count/10. The correlation coefficients of the linear regression of these solar indices versus F 10.7 were analyzed for every year in solar cycles 21, 22 and unusual cycle 23. We found out that the values of yearly determined correlation coefficients K corr for solar activity indices versus F 10.7 show the cyclic variations with stable period closed to half length of 11-year cycle.

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References

  1. Alecseev, I.Yu., Gershberg, R.E. The solar and solar-type stars activity. Astron. Report. 73, 589–597 (1996)

    Google Scholar 

  2. Baliunas, S.L., Donahue, R.A., Soon, W.H. The topological properties of magnetic helicity. Astrophys. J. 438, 269–280 (1995)

    Google Scholar 

  3. Bruevich, E.A., Alecseev, I.Yu. Activity of the Sun and solar-type stars. Astrophysics. 50, 187–195 (2007)

    Google Scholar 

  4. Bruevich, E.A., Nusinov, A.A. Spectrum of short-wave emission for aeronomical calculations for different levels of solar activity. Geomagnetizm i Aeronomiia. 24, 581–585 (1984)

    Google Scholar 

  5. Lukyanova, R., Mursula, K. Changed relation between sunspot numbers, solar UV/EUV radiation and TSI during the declining phase of solar cycle 23. Journal of Atmospheric and Solar-Terrestrial Physics 73, 235–240 (2011)

    Google Scholar 

  6. Skupin, J., Weber, M., Bovensmann, H., BurrowsJ.P. The MgII Solar Activity Proxy Indicator Derived From GOME And SCIAMACHY. The 2004 Envisat and ERS Symposium (ESA SP-572), Salzburg, Austria, (2005)

    Google Scholar 

  7. Vitinsky, Yu.I., Kopecky, M., Kuklin, G.B. The statistics of the spot generating activity of the Sun., Moscow, Nauka (1986)

    Google Scholar 

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Acknowledgements

The authors thank the RFBR Grant 09-02-01010 and FCPK Grant N 16. 740. 11. 0465 for support of the work.

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Authors and Affiliations

  1. Moscow State Pedagogical University, Moscow, Russia

    A. A. Borisov & I. K. Rozgacheva

  2. Sternberg Astronomical Institute, MSU, Moscow, Russia

    E. A. Bruevich & G. V. Yakunina

Authors
  1. A. A. Borisov
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  2. E. A. Bruevich
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  3. I. K. Rozgacheva
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  4. G. V. Yakunina
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Corresponding author

Correspondence to A. A. Borisov .

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Editors and Affiliations

  1. IZMIRAN, xx, Troitsk Moscow region, 142190, Russia

    Vladimir N. Obridko

  2. SSTRI-BAS, Moskovska str. 6, Sofia, 1000, Bulgaria

    Katya Georgieva

  3. Pulkovo Observatory, Pulkovskoe shausse 65/1, Saint Petersburg, 196140, Russia

    Yury A. Nagovitsyn

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© 2012 Springer-Verlag Berlin Heidelberg

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Borisov, A.A., Bruevich, E.A., Rozgacheva, I.K., Yakunina, G.V. (2012). Solar Activity Indices in the Cycles 21–23. In: Obridko, V., Georgieva, K., Nagovitsyn, Y. (eds) The Sun: New Challenges. Astrophysics and Space Science Proceedings, vol 30. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-29417-4_20

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  • DOI: https://doi.org/10.1007/978-3-642-29417-4_20

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-29416-7

  • Online ISBN: 978-3-642-29417-4

  • eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)

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