Browsing by Author "Narain, U"

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On Alfvén wave damping in polar coronal holes

Narain, U; Sharma, R. K; Vekstein, G (Astronomical Society of India, 1997)

We reexamine quantitatively the linear resistive and viscous damping of Alfven waves propagating in solar coronal holes, using recently reported observational data on the plasma density and temperature there as well as ...
On heating of stellar (solar) chromospheres and coronae by magnetoacoustic waves: A review

Narain, U; Agarwal, P (Astronomical Society of India, 1994)

Stellar chromospheres and coronae may be heated by waves of various types. Magnetoacoustic waves are one of them. Subphotospheric turbulence generates various types of waves. Here the basic theory of generation, propagation ...
On solar coronal heating

Pandey, K; Narain, U (Astronomical Society of India, 2001)

We review heating of solar corona by magnetic fields/currents. Our emphasis is on micro- and nano-flares. In case of a microflare the energy release is ~1026 ergs whereas in a nanoflare ~1023 - 1025 ergs of energy is ...
On the electric circuit approach of coronal heating: a review

Narain, U; Kumar, S (Astronomical Society of India, 1993-06)

It is now widely believed that the photosphere of the Sun and its outer atmosphere (chromosphere and corona) are electrodynamically coupled through interconnecting magnetic fields. A similar situation may exist in other ...

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