International Journal of Astrophysics and Space Science

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Effect of Polarity Reversal on Third Harmonics of Cosmic Ray Intensity on Quiet Days

Received: 12 December 2014    Accepted: 26 December 2014    Published: 18 March 2015
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Abstract

The cosmic ray (CR) intensity data recorded with Goose Bay Neutron Monitoring Station have been investigated on 60 quietest days (QD) in a year for studying the variation in tri diurnal anisotropy during solar cycle 21 and 22. It has been observed that in spite of abrupt change in the amplitude and phase of tri-diurnal anisotropy in CR intensity, the amplitude is quite significant throughout period of investigation with small amplitude during 1981 and 1990. Further, the phase shift to earlier hours during 1990-91 showing the dependence on the polarity of solar magnetic field, which is attributed to drift effect. Thus, the tri-diurnal anisotropy clearly shows 11 year type variation at mid-latitude neutron monitoring station.

DOI 10.11648/j.ijass.s.2015030201.11
Published in International Journal of Astrophysics and Space Science (Volume 3, Issue 2-1, March 2015)

This article belongs to the Special Issue Modulation of Cosmic Rays, Inter Planetary Magnetic Field, Magnetic Storm, Large and Small Amplitude Wave Train

Page(s) 1-3
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Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Cosmic Rays/ Higher Harmonics/Geo-magnetically Quiet Days

References
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[5] El Borie, M. A., Sabbah, I.S., Darwish, A. A. and Bishra, A. A. 1995b, 24th Int. Cosmic Ray Conf., Rome, Italy, 4:603.
[6] Fujii, A., Nagashima, K., Fujimoto, K., Ueno, H. And Kondo, I. 1971, 12th ICRC, Hobart Tasmania, 2, 666.
[7] K. Munakata and K. Nagashima. 1986, Planet Space Sci. 34, 99.
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[9] K. Nagashima and K. Fujimoto. 1989, Planet Space Sci. 37, 1421.
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Author Information
  • Department of Physics, Govt. Science College (Autonomous) Jabalpur (M.P.) India

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  • APA Style

    M. K. Richharia. (2015). Effect of Polarity Reversal on Third Harmonics of Cosmic Ray Intensity on Quiet Days. International Journal of Astrophysics and Space Science, 3(2-1), 1-3. https://doi.org/10.11648/j.ijass.s.2015030201.11

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    ACS Style

    M. K. Richharia. Effect of Polarity Reversal on Third Harmonics of Cosmic Ray Intensity on Quiet Days. Int. J. Astrophys. Space Sci. 2015, 3(2-1), 1-3. doi: 10.11648/j.ijass.s.2015030201.11

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    AMA Style

    M. K. Richharia. Effect of Polarity Reversal on Third Harmonics of Cosmic Ray Intensity on Quiet Days. Int J Astrophys Space Sci. 2015;3(2-1):1-3. doi: 10.11648/j.ijass.s.2015030201.11

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  • @article{10.11648/j.ijass.s.2015030201.11,
      author = {M. K. Richharia},
      title = {Effect of Polarity Reversal on Third Harmonics of Cosmic Ray Intensity on Quiet Days},
      journal = {International Journal of Astrophysics and Space Science},
      volume = {3},
      number = {2-1},
      pages = {1-3},
      doi = {10.11648/j.ijass.s.2015030201.11},
      url = {https://doi.org/10.11648/j.ijass.s.2015030201.11},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.ijass.s.2015030201.11},
      abstract = {The cosmic ray (CR) intensity data recorded with Goose Bay Neutron Monitoring Station have been investigated on 60 quietest days (QD) in a year for studying the variation in tri diurnal anisotropy during solar cycle 21 and 22. It has been observed that in spite of abrupt change in the amplitude and phase of tri-diurnal anisotropy in CR intensity, the amplitude is quite significant throughout period of investigation with small amplitude during 1981 and 1990. Further, the phase shift to earlier hours during 1990-91 showing the dependence on the polarity of solar magnetic field, which is attributed to drift effect. Thus, the tri-diurnal anisotropy clearly shows 11 year type variation at mid-latitude neutron monitoring station.},
     year = {2015}
    }
    

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    T1  - Effect of Polarity Reversal on Third Harmonics of Cosmic Ray Intensity on Quiet Days
    AU  - M. K. Richharia
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    JF  - International Journal of Astrophysics and Space Science
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    AB  - The cosmic ray (CR) intensity data recorded with Goose Bay Neutron Monitoring Station have been investigated on 60 quietest days (QD) in a year for studying the variation in tri diurnal anisotropy during solar cycle 21 and 22. It has been observed that in spite of abrupt change in the amplitude and phase of tri-diurnal anisotropy in CR intensity, the amplitude is quite significant throughout period of investigation with small amplitude during 1981 and 1990. Further, the phase shift to earlier hours during 1990-91 showing the dependence on the polarity of solar magnetic field, which is attributed to drift effect. Thus, the tri-diurnal anisotropy clearly shows 11 year type variation at mid-latitude neutron monitoring station.
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