Browsing IIAP Publications by Subject "Wave propagation"

Now showing items 1-4 of 4

Doppler frequency fluctuations of lower thermospheric reflections in the equatorial electrojet region

Sastri, J. H; Ramesh, K. B; Rao, J. V. S. V (Elsevier, 1991-07)

The origin of short-period fluctuations from Doppler frequency-shift (P) data is investigated by examining their quantitative relationships with ambient electrojet strength and associated ionospheric conditions. The wave ...
Energy transport to the solar corona by magnetic kink waves

Choudhuri, A. R; Dikpati, M; Banerjee, D (American Astronomical Society, 1993-08-20)

We show that the magnetic kink waves generated by the motions of photospheric footpoints of the coronal flux tubes can supply adequate energy for heating the quiet corona, provided there are occasional rapid motions of ...
Mode classification and wave propagation in a magnetically structured medium

Hasan, S. S; Sobouti, Y (Blackwell, 1987-09)

The authors examine the structure of motions that can occur in a vertical magnetic flux tube with a rectangular cross-section. A polytropic stratification is assumed in the vertical direction. The authors use a gauged ...
Wave propagation in sunspots

Hasan, S. S (International Astronomical Union, 1990)

Wave propagation in sunspot umbrae is analyzed; the stratification in a typical umbra is approximated by a model atmosphere, extending vertically from a depth of a few thousand kilometers below the photosphere, to the ...

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