Mechanisms for mhd poynting flux generation in simulations of solar photospheric magnetoconvection

Shelyag, Sergiy, Mathioudakis, M and Keenan, FP 2012, Mechanisms for mhd poynting flux generation in simulations of solar photospheric magnetoconvection, Astrophysical journal letters, vol. 753, no. 1, pp. 1-5, doi: 10.1088/2041-8205/753/1/L22.

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Title Mechanisms for mhd poynting flux generation in simulations of solar photospheric magnetoconvection
Author(s) Shelyag, SergiyORCID iD for Shelyag, Sergiy orcid.org/0000-0002-6436-9347
Mathioudakis, M
Keenan, FP
Journal name Astrophysical journal letters
Volume number 753
Issue number 1
Article ID L22
Start page 1
End page 5
Total pages 5
Publisher IOP Publishing
Place of publication Bristol, Eng.
Publication date 2012-07-01
ISSN 2041-8205
2041-8213
Keyword(s) magnetohydrodynamics (MHD)
plasmas
Sun: photosphere
Sun: surface magnetism
Science & Technology
Physical Sciences
Astronomy & Astrophysics
Summary We investigate the generation mechanisms of MHD Poynting flux in the magnetized solar photosphere. Using radiative MHD modeling of the solar photosphere with initial magnetic configurations that differ in their field strength and geometry, we show the presence of two different mechanisms for MHD Poynting flux generation in simulations of solar photospheric magnetoconvection. The weaker mechanism is connected to vertical transport of weak horizontal magnetic fields in the convectively stable layers of the upper photosphere, while the stronger is the production of Poynting flux in strongly magnetized intergranular lanes experiencing horizontal vortex motions. These mechanisms may be responsible for the energy transport from the solar convection zone to the higher layers of the solar atmosphere.
Language eng
DOI 10.1088/2041-8205/753/1/L22
Field of Research 0201 Astronomical And Space Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2012, The American Astronomical Society
Persistent URL http://hdl.handle.net/10536/DRO/DU:30114958

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