Výsledky vyhledávání - "Gurgenashvili, Eka"

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Magneto-Rossby waves in the solar tachocline and the annual variations in solar activity

Autor: Gachechiladze, Tamar, Zaqarashvili, Teimuraz V., Gurgenashvili, Eka, Ramishvili, Giorgi, Carbonell, Marc, Oliver, Ramon, Balleste, Jose Luis

Annual oscillations have been detected in many indices of solar activity during many cycles. Recent multi spacecraft observations of coronal bright points revealed slow retrograde toroidal phase drift (with the speed of 3 m/s of 1 yr oscillations, wh

Externí odkaz: http://arxiv.org/abs/1904.12788

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North-south asymmetry in Rieger-type periodicity during solar cycles 19-23

Autor: Gurgenashvili, Eka, Zaqarashvili, Teimuraz V., Kukhianidze, Vasil, Oliver, Ramon, Ballester, Jose Luis, Dikpati, Mausumi, McIntosh, Scott W.

Rieger-type periodicity has been detected in different activity indices over many solar cycles. It was recently shown that the periodicity correlates with solar activity having a shorter period during stronger cycles. Solar activity level is generall

Externí odkaz: http://arxiv.org/abs/1707.08615

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Rieger-type periodicity during solar cycles 14-24: estimation of dynamo magnetic field strength in the solar interior

Autor: Gurgenashvili, Eka, Zaqarashvili, Teimuraz, Kukhianidze, Vasil, Oliver, Ramon, Ballester, Jose Luis, Ramishvili, Giorgi, Shergelashvili, Bidzina, Hanslmeier, Arnold, Poedts, Stefaan

Solar activity undergoes a variation over time scales of several months known as Rieger-type periodicity, which usually occurs near maxima of sunspot cycles. An early analysis showed that the periodicity appears only in some cycles, and is absent in

Externí odkaz: http://arxiv.org/abs/1605.04162

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