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- Iowa State UniversityUS242 papers
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5 papers · 2 filters
Two-fluid numerical model of chromospheric heating and plasma outflows in a quiet-Sun
K. Murawski, Z. E. Musielak, S. Poedts +2
\textbf{Purpose:} This paper addresses long-standing solar physics problems, namely, the heating of the solar chromosphere and the origin of the solar wind. Our aim is to reveal th…
Toroidal flux loss due to flux emergence explains why solar cycles rise differently but decay in a similar way
Akash Biswas, Bidya Binay Karak, Robert Cameron
A striking feature of the solar cycle is that at the beginning, sunspots appear around mid-latitudes, and over time the latitudes of emergences migrate towards the equator.The maxi…
Spectroscopic study of solar transition region oscillations in the quiet-Sun observed by IRIS using Si IV spectral line
Kartika Sangal, A. K. Srivastava, P. Kayshap +3
In the present paper, we use Si IV 1393.755 Å spectral line observed by the Interface Region Imaging Spectrograph (IRIS) in the quiet-Sun to determine physical nature of the solar…
Advanced asteroseismic modelling: breaking the degeneracy between stellar mass and initial helium abundance
Kuldeep Verma, Jakob L. Rørsted, Aldo M. Serenelli +3
Current stellar model predictions of adiabatic oscillation frequencies differ significantly from the corresponding observed frequencies due to the non-adiabatic and poorly understo…
Physical link of the polar field build-up with the Waldmeier effect broadens the scope of early solar cycle prediction: Cycle 25 is likely to be slightly stronger than Cycle 24
Pawan Kumar, Akash Biswas, Bidya Binay Karak
Prediction of the solar cycle is challenging but essential because it drives space weather. Several predictions with varying amplitudes of the ongoing Cycle~25 have been made. We s…