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Alfvén pulse driven spicule-like jets in the presence of thermal conduction and ion-neutral collision in two-fluid regime.

Authors :
Srivastava, A. K.
Singh, Anshika
Singh, Balveer
Murawski, K.
Zaqarashvili, T. V.
Yuan, D.
Scullion, E.
Mishra, Sudheer K.
Dwivedi, B. N.
Source :
Philosophical Transactions of the Royal Society A: Mathematical, Physical & Engineering Sciences. 6/9/2024, Vol. 382 Issue 2272, p1-20. 20p.
Publication Year :
2024

Abstract

We present the formation of quasi-periodic cool spicule-like jets in the solar atmosphere using 2.5-D numerical simulation in two-fluid regime (ions+neutrals) under the presence of thermal conduction and ion-neutral collision. The nonlinear, impulsive Alfvénic perturbations at the top of the photosphere trigger field aligned magnetoacoustic perturbations due to ponderomotive force. The transport of energy from Alfvén pulse to such vertical velocity perturbations due to ponderomotive force is considered as an initial trigger mechanism. Thereafter, these velocity perturbations steepen into the shocks followed by quasi-periodic rise and fall of the cool jets transporting mass in the overlying corona. This article is part of the theme issue 'Partially ionized plasma of the solar atmosphere: recent advances and future pathways'. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
1364503X
Volume :
382
Issue :
2272
Database :
Academic Search Index
Journal :
Philosophical Transactions of the Royal Society A: Mathematical, Physical & Engineering Sciences
Publication Type :
Academic Journal
Accession number :
176872332
Full Text :
https://doi.org/10.1098/rsta.2023.0220