IIA Institutional Repository

Browsing by Subject "Interplanetary Magnetic Fields"

Browsing by Subject "Interplanetary Magnetic Fields"

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  • Daily variation of the equatorial geomagnetic field in the vicinity of the IMF sector boundaries 
    Murthy, B. S (National Institute of Science Communication And Information Resources, 1979-12)
    The response of the equatorial geomagnetic field to the passage of over 170 spacecraft-observed and well-established sector boundaries during the period 1962-1972 has been studied. It is shown from superposed epoch analysis ...
  • Direct generation of electromagnetic radiation from a beam-plasma system 
    Krishan, V (Institute of Physics, 1980-02)
    A possible mechanism for the direct generation of electromagnetic modes of frequencies near the electron plasma frequency, is suggested. The spatial variation of the interplanetary magnetic field seems to play an essential ...
  • IMF polarity effects on the equatorial ionospheric F-region 
    Sastri, J. H (1985)
    An exploratory study is made of the influence, during the equinoxes, of the interplanetary magnetic field (IMF) sector structure on the ionospheric F-region using ionosonde data from several equatorial stations for a 3-yr ...
  • Influence of solar wind variability of the recurrence of droughts 
    Venkatakrishnan, P (D. Reidel Publishing Co, 1982-11)
    The observed effects of solar flares and interplanetary sector crossings seem to indicate that particle precipitation in the earth's upper atmosphere decreases cyclonic activity in the troposphere. As an extrapolation to ...
  • Interplanetary magnetic field and equatorial ionosphere 
    Sastri, J. H (European Geophysical Society, 1980-06)
    Relationships between events in the interplanetary magnetic field and the equatorial ionosphere are investigated. Simultaneous data showing sudden northward transitions of the interplanetary magnetic field and nighttime ...
  • On the origin of highest energy cosmic rays 
    Sigl, G; Schramm, D. N; Bhattacharjee, P (Elsevier, 1994-09)
    In this paper we show that the conventional diffusive shock acceleration mechanism for cosmic rays associated with relativistic astrophysical shocks in active galactic nuclei (AGNs) has severe difficulties to explain the ...

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