A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Numerical Simulations of Solar Spicule Jets at a Magnetic Null-Point
Tekijät: Smirnova V, Konkol PM, Solov'ev AA, Murawski K
Kustantaja: SPRINGER
Julkaisuvuosi: 2016
Journal: Solar Physics
Tietokannassa oleva lehden nimi: SOLAR PHYSICS
Lehden akronyymi: SOL PHYS
Vuosikerta: 291
Numero: 11
Aloitussivu: 3207
Lopetussivu: 3216
Sivujen määrä: 10
ISSN: 0038-0938
eISSN: 1573-093X
DOI: https://doi.org/10.1007/s11207-016-0976-0
Tiivistelmä
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).
Turun yliopiston Tutkimustietojärjestelmän portaali