International Journal of Astrophysics and Space Science

Archive

Volume 3, Issue 3, June 2015

  • Electron-Positron Pairs Related to Alfven Waves on the Magnetar Surface

    Abdul Kader, Kalpana Duorah

    Issue: Volume 3, Issue 3, June 2015
    Pages: 25-29
    Received: 8 April 2015
    Accepted: 23 April 2015
    Published: 6 May 2015
    DOI: 10.11648/j.ijass.20150303.11
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    Abstract: The phenomena of electron-positron pairs production through the polar cap region of a magnetar is studied. Assuming the distances of electron-positron pair regions from the magnetar centre to be the height scales of magnetic deformed regions and hence determine by adopting the Alfven waves propagation. The maximum potential drop on the magnetar sur... Show More
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  • Day-to-Day Variability of Low Latitude F-Region Ionosphere During Low Solar Activity

    Anju Nagar, Satyadeo Mishra, Surendra Kumar Vijay

    Issue: Volume 3, Issue 3, June 2015
    Pages: 30-41
    Received: 30 January 2015
    Accepted: 14 April 2015
    Published: 7 May 2015
    DOI: 10.11648/j.ijass.20150303.12
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    Abstract: This paper presents an analysis of the F-region variability of the ionospheric parameters [foF2and M(3000)F2] at three low latitude stations during low solar activity periods from January 2006 to December 2010. The diurnal, seasonal and day-to-day characteristics of theseionospheric F-region parameters have been studied in detail. With the use of p... Show More
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  • Dynamics of a Charged Scalar Field Thin Shell

    A. Eid

    Issue: Volume 3, Issue 3, June 2015
    Pages: 50-54
    Received: 23 April 2015
    Accepted: 6 May 2015
    Published: 15 May 2015
    DOI: 10.11648/j.ijass.20150303.14
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    Abstract: This paper deals with the motion of a charged spherically symmetric thin shell composed of a scalar field. The equations of motion resulting from the matching conditions of the two surrounding spacetimes which are described by the Reissner Nordstrom metric are derived. I evaluate the case of massless scalar field, where the scalar field potential i... Show More
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