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Browsing by Author "Venkatakrishnan, P"

Browsing by Author "Venkatakrishnan, P"

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  • Thermal overstability of hydromagnetic surface waves 
    Joarder, P. S; Gokhale, M. H; Venkatakrishnan, P (Kluwer Academic Publishers, 1987-09)
    The authors investigate the effects of radiative heat losses and thermal conductivity on the hydromagnetic surface waves along a magnetic discontinuity in a plasma of infinite electrical conductivity. They show that the ...
  • A time dependent model for spicule flow 
    Hasan, S. S; Venkatakrishnan, P (Kluwer Academic Publishers, 1981-09)
    A time dependent model for the flow of gas in a spicule is studied. In this model, the flow occurs in a magnetic flux sheath. Starting from hydrostatic equilibrium, the flux sheath is allowed to collapse normal to itself. ...
  • Time variability of the He I 10830 A line profile 
    Singh, J; Jain, S. K; Venkatakrishnan, P (Springer, 1994-03)
    We have studied the time-dependent behavior of the He I 10830 A line. These studies show that (1) the fluctuations of the line width are uncorrelated with the equivalent-width fluctuations and (2) the autocorrelation curves ...
  • Time-dependent interaction of granules with magnetic flux tubes 
    Venkatakrishnan, P; Hasan, S. S (Indian Academy of Sciences, 1981-06)
    The time-dependent interaction of the granulation velocity field with a magnetic flux tube is investigated here. It is seen that when a magnetic field line is displaced normal to itself so as to simulate thebuffeting action ...
  • Transient response of the solar wind to changes in flow geometry 
    Hasan, S. S; Venkatakrishnan, P (D.Reidel Publishing Co.,, 1982-10)
    An initial stationary flow in a configuration diverging as r-squared is assumed, a state corresponding to the normal solar wind solution. The effect on the flow through a tube whose area A(r, t) diverges faster than ...
  • Transmission of acoustic wave energy across a magnetic flux sheath 
    Venkatakrishnan, P; Gokhale, M. H (Springer, 1977-10)
    The transmission of the energy of an acoustic wave incident on a magnetic flux sheath embedded in a homogeneous nonmagnetic plasma is analyzed for the case where finite current sheets are situated between the flux sheath ...
  • Transverse motions and wave heating of the solar atmosphere 
    Krishnakumar, V; Venkatakrishnan, P (Kluwer Academic Publishers, 1999-05)
    Periodic shaking or buffeting of magnetic flux tubes could generate magnetohydrodynamic waves which propagate along the flux tubes and dissipate energy in the chromosphere and/or corona. If we make an assumption that the ...
  • Wave propagation in solar magnetic tubes 
    Venkatakrishnan, P (Astronomical Society of India, 1981-09)
    The work done on propagation of waves in magnetic tubes is reviewed. It is seen that majority of the results obtained so far are based on the thin tube approximation. It is shown that estimates of the mechanical energy ...

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