Thermal conduction effects on formation of chromospheric solar tadpole-like jets
| Autor: | Anamaria Navarro, K. Murawski, Stefaan Poedts, Fabio D. Lora-Clavijo |
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| Rok vydání: | 2020 |
| Předmět: |
Physics
010504 meteorology & atmospheric sciences Flux tube FOS: Physical sciences Astronomy and Astrophysics Plasma Thermal conduction 01 natural sciences Computational physics Magnetic field Amplitude Thermal conductivity Astrophysics - Solar and Stellar Astrophysics Space and Planetary Science 0103 physical sciences Physics::Space Physics Astrophysics::Solar and Stellar Astrophysics Magnetohydrodynamics 010303 astronomy & astrophysics Chromosphere Solar and Stellar Astrophysics (astro-ph.SR) 0105 earth and related environmental sciences |
| DOI: | 10.48550/arxiv.2011.02006 |
| Popis: | We measure the effects of non-isotropic thermal conduction on generation of solar chromospheric jets through numerical simulations carried out with the use of one fluid MHD code MAGNUS. Following the work of Srivastava et al. (2018), we consider the atmospheric state with a realistic temperature model and generate the ejection of plasma through a gas pressure driver operating in the top chromosphere. We consider the magnetic field mimicking a flux tube and perform parametric studies by varying the magnetic field strength and the amplitude of the driver. We find that in the case of thermal conduction the triggered jets exhibit a considerably larger energy and mass fluxes and their shapes are more collimated and penetrate more the solar corona than for the ideal MHD equations. Low magnetic fields allow these jets to be more energetic, and larger magnetic fields decrease the enhancement of mass and energy due to the inclusion of the thermal conductivity. Comment: 6 Pages, 19 figures. Accepted for publication in Monthly Notices of the Royal Astronomical Society (MNRAS) |
| Databáze: | OpenAIRE |
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