SH31B-2405
On the Observation and Simulation of Solar Coronal Twin Jets
Wednesday, 16 December 2015
Poster Hall (Moscone South)
Jiajia Liu1, Fang Fang2, Yuming Wang1, Scott William Mcintosh2, Yuhong Fan3 and Quanhao Zhang1, (1)University of Science and Technology of China, Hefei, China, (2)High Altitude Observatory, Boulder, CO, United States, (3)National Center for Atmospheric Research, Boulder, CO, United States
Abstract:
We present the first observation, analysis and modeling on solar coronal twin jets, which occurred after a preceding jet. Detailed analysis on the kinetics of the preceding jet reveals its blowout-jet nature, which resembles the study by Liu et al. 2014. However the erupting process and kinetics of the twin jets appear to be different from the preceding one. To address the triggering mechanism of the twins, we continue the 3D MHD numerical simulation work in Fang et al. 2014 after the eruption of a blowout jet. Numerical simulation shows that the resulting sigmoidal magnetic fields after the blowout jet keep reconnecting with the ambient fields, producing the observed twin jets. Combining our observation and simulation, we suggest that with the continuous energy transport from the subsurface convection zone into the corona, solar coronal twin jets could be generated by reconnection between a sigmoidal magnetic structure and the open ambient fields.
