A1 Refereed original research article in a scientific journal
Numerical Simulations of Solar Spicule Jets at a Magnetic Null-Point
Authors: Smirnova V, Konkol PM, Solov'ev AA, Murawski K
Publisher: SPRINGER
Publication year: 2016
Journal: Solar Physics
Journal name in source: SOLAR PHYSICS
Journal acronym: SOL PHYS
Volume: 291
Issue: 11
First page : 3207
Last page: 3216
Number of pages: 10
ISSN: 0038-0938
eISSN: 1573-093X
DOI: https://doi.org/10.1007/s11207-016-0976-0
Abstract
Two-dimensional numerical simulations of jet-like structures in the solar atmosphere are performed. These structures result from a pressure pulse that is launched at the null point of a potential magnetic arcade. The plasma jet exhibits a double structure with two components: (a) dense, cool, and short vertical stream and (b) a less dense, hot and tall part of the jet. The upper part of the hot and tall jet may represent a direct response of the system to the pressure pulse launched at the null point, and the second, slower cool and dense part of the jet is formed later through the stretching up of the stream as a result of plasma evacuation from the top of the magnetic arcade. Numerical results show that jet-like structures mimic some properties of both type I and type II spicules, according to the classification provided by De Pontieu et al. (Publ. Astron. Soc. Japan 59, S655, 2007).
Two-dimensional numerical simulations of jet-like structures in the solar atmosphere are performed. These structures result from a pressure pulse that is launched at the null point of a potential magnetic arcade. The plasma jet exhibits a double structure with two components: (a) dense, cool, and short vertical stream and (b) a less dense, hot and tall part of the jet. The upper part of the hot and tall jet may represent a direct response of the system to the pressure pulse launched at the null point, and the second, slower cool and dense part of the jet is formed later through the stretching up of the stream as a result of plasma evacuation from the top of the magnetic arcade. Numerical results show that jet-like structures mimic some properties of both type I and type II spicules, according to the classification provided by De Pontieu et al. (Publ. Astron. Soc. Japan 59, S655, 2007).
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