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pro vyhledávání: '"Gupta, Girjesh R."'
Autor:
Rawat, Ananya, Gupta, Girjesh R.
Waves play an important role in the heating of solar atmosphere, however, observations of wave propagation and damping from the solar photosphere to corona through chromosphere and transition region are very rare. Recent observations have shown propa
Externí odkaz:
http://arxiv.org/abs/2407.21561
Autor:
Rawat, Ananya, Gupta, Girjesh R.
Sunspots host various oscillations and wave phenomena like umbral flashes, umbral oscillations, running penumbral waves, and coronal waves. All fan loops rooted in sunspot umbra constantly show a 3-min period propagating slow magnetoacoustic waves in
Externí odkaz:
http://arxiv.org/abs/2308.03490
Autor:
Gupta, Girjesh R., Nayak, Sushree S.
Coronal loops are basic building blocks of solar atmosphere and are observed on various length scales. However, their formation mechanism is still unclear. In this paper, we present the spectroscopic and imaging observations of small-scale transients
Externí odkaz:
http://arxiv.org/abs/2203.03529
Publikováno v:
A&A 627, A62 (2019)
The Alfv\'en wave energy flux in the corona can be explored using the electron density and velocity amplitude of the waves. The velocity amplitude of Alfv\'en waves can be obtained from the non-thermal velocity of the spectral line profiles. Previous
Externí odkaz:
http://arxiv.org/abs/1905.08194
Autor:
Gupta, Girjesh R, Nayak, Sushree S
Publikováno v:
Monthly Notices of the Royal Astronomical Society; 5/30/2022, Vol. 512 Issue 3, p3149-3162, 14p
Akademický článek
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Autor:
Gupta, Girjesh R
One of the most persistent problem in solar physics is the identification of the mechanism that heats the solar corona and accelerates the fast solar wind. Magneto-hydrodynamic (MHD)waves play a crucial role in heating of the solar corona and acceler
Externí odkaz:
http://etd.iisc.ernet.in/handle/2005/2399
http://etd.ncsi.iisc.ernet.in/abstracts/3085/G24652-Abs.pdf
http://etd.ncsi.iisc.ernet.in/abstracts/3085/G24652-Abs.pdf