EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Observations and Simulations of Reconnecting Current Sheets in the Solar Corona

Spiro Antiochos, Pankaj Kumar, Judy Jarpen, and Joel Dahlin
Spiro Antiochos et al.
  • NASA Goddard Space Flight Center, Heliophysics Science Division, Greenbelt, MD, United States of America (

Jets and mass ejections are ubiquitous features of the Sun’s corona. These explosive dynamics are all believed to be driven by magnetic reconnection at two types of current sheets that form in the solar atmosphere: those that form at magnetic null points and separatrix surfaces, and those, such as the heliospheric current sheet, that form as a result of a large expansion of a bipolar magnetic field. In our breakout model, both types of current sheets are essential for the explosive release of magnetic energy. We report on the first direct observations of reconnection and island formation in a null-point current sheet associated with a large coronal jet. The topology and velocities of the islands are in excellent agreement with our numerical simulations of coronal jets. We discuss the implications of the observations and our models for understanding the energetic particles produced by these events and their release into interplanetary space, as well as the implications for observations by Solar Orbiter and the Parker Solar Probe.

This work was supported by the NASA Living With a Star Program.


How to cite: Antiochos, S., Kumar, P., Jarpen, J., and Dahlin, J.: Observations and Simulations of Reconnecting Current Sheets in the Solar Corona, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-5597,, 2020


Display file

Comments on the display

AC: Author Comment | CC: Community Comment | Report abuse

displays version 1 – uploaded on 05 May 2020, no comments