International Journal of Astrophysics and Space Science

Special Issue

Modulation of Cosmic Rays, Inter Planetary Magnetic Field, Magnetic Storm, Large and Small Amplitude Wave Train

  • Submission Deadline: Jan. 20, 2015
  • Status: Submission Closed
  • Lead Guest Editor: Mahendra Richharia
About This Special Issue
The Cosmic Rays after being originated by their sources are modulated within the intergalactic regions. Within the solar system, Sun being, the solely active star. Further Changing condition over the solar disc will lead to small and large scale variation in the interplanetary region.

Sun influential region is inter stellar medium is known as Heliosphere, Heliosphere boundary are directly or indirectly related with sun and its outputs.

Sun spot numbers are normally being used as easily available parameters of solar activity, which shows 11 years periodicity.

Besides this many other solar indices have been used to study their relationship with various interplanetary geomagnetically parameters and also for CR intensity variations.

These CR variations are carried away be the solar winds with frozen-in solar magnetic fields. This leads to the two major types modulation in Cosmic Rays as detected by ground based instrumentation.
Lead Guest Editor
  • Mahendra Richharia

    Physics Department, Government Model Science College, Jabapur, India

Guest Editors
  • Pankaj Kumar Shrivastava

    Department of Physics, Govt. Model Science College, Rewa, India

  • Karthikeyan L M

    Department of Aerospace Engineering, Noorul Islam University, Kumaracoil, India

Published Articles
  • Study of Higher Harmonics of Cosmic Ray Intensity on Quiet Days at Deep River Neutron Monitoring Station

    M. K. Richharia

    Issue: Volume 3, Issue 2-1, March 2015
    Pages: 4-6
    Received: Jan. 02, 2015
    Accepted: Mar. 09, 2015
    Published: Mar. 18, 2015
    DOI: 10.11648/j.ijass.s.2015030201.12
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    Abstract: The cosmic ray (CR) intensity data recorded with Deep River Neutron Monitoring Station have been investigated on quietest days (QD) for higher harmonics of daily variation during solar cycle 21 and 22. It has been observed that inspite of the abrupt change in the amplitude and phase of tri-diurnal and quart diurnal anisotropy in CR intensity, the a... Show More
  • Effect of Polarity Reversal on Third Harmonics of Cosmic Ray Intensity on Quiet Days

    M. K. Richharia

    Issue: Volume 3, Issue 2-1, March 2015
    Pages: 1-3
    Received: Dec. 12, 2014
    Accepted: Dec. 26, 2014
    Published: Mar. 18, 2015
    DOI: 10.11648/j.ijass.s.2015030201.11
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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, t... Show More