JpGU-AGU Joint Meeting 2020

Presentation information

[E] Oral

P (Space and Planetary Sciences ) » P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM14] Frontiers in solar physics

convener:Shinsuke Imada(Institute for Space-Earth Environmental Research, Nagoya University), Alphonse Sterling(NASA/MSFC), Takaaki Yokoyama(School of Science, University of Tokyo), Toshifumi Shimizu(Institute of Space and Astronautical Science, JAXA)

[PEM14-11] Solar photospheric jet-like structures formed by slow shock

*Yuji Kotani1, Kazunari Shibata2 (1.Department of Astronomy, Kyoto University, 2.Kwasan and Hida Observatories, Kyoto University)

Keywords:magnetic reconnection, slow shock, solar jet, solar photosphere

Jet phenomena with a bright loop in their footpoint have been observed in the solar corona and chromosphere, and these are called anemone jets. These jets are formed by magnetic reconnection, and from the scale universality of magnetohydrodynamics (MHD), it can be expected that anemone jets exist even in the solar photosphere. However, it is not obvious whether jets can be generated by magnetic reconnection even in the solar photosphere where magnetic energy is not dominant. To verify whether anemone jets exist in the solar photosphere, we perform 3D MHD simulation including gravity with the solar photospheric parameter. As a result of the simulation, jet-like structures are formed by magnetic reconnection even in the solar photosphere. We find this jet-like strucutures are caused by slow shock formed by reconnection and propagating roughly in the direction of the background field. In this talk, we will introduce the formation mechanism of this jet-like structure.