Browsing Department of Physics by Author "A. K. Srivastava"

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Intensity oscillations observed with Hinode near the south pole of the Sun: leakage of low frequency magneto-acoustic waves into the solar corona

A. K. Srivastava; D. Kuridze; T. V. Zaqarashvili; B. N. Dwivedi (2008-04)

We study intensity oscillations in the solar chromosphere and corona, above a quiet-Sun magnetic network. Methods. We analyse the time series of He II 256.32 Å, Fe XI 188.23 Å and Fe XII 195.12 Å spectral lines, observed ...
Observation of multiple sausage oscillations in cool post-flare loop

A. K. Srivastava; T. V. Zaqarashvili; W. Uddin; B. N. Dwivedi (2008-08)

Using simultaneous high spatial (1.3 arcsec) and temporal (5 and 10 s) resolution Hα observations from the 15 cm Solar Tower Telescope at Aryabhatta Research Institute of Observational Sciences (ARIES), we study the ...

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