Modeling solar chromospheric spicules with intense lasers

oleh: Jianzhao Wang, Jiayong Zhong, Jiayong Zhong, Jiayong Zhong, Weiming An, Weiming An, Weimin Zhou, Chen Wang, Bo Zhang, Yongli Ping, Yongli Ping, Wei Sun, Wei Sun, Xiaoxia Yuan, Pengfei Tang, Yapeng Zhang, Qian Zhang, Chunqing Xing, Zhengdong Liu, Jiacheng Yu, Jun Xiong, Shukai He, Roger Hutton, Yuqiu Gu, Gang Zhao, Jie Zhang, Jie Zhang

Format: Article
Diterbitkan: Frontiers Media S.A. 2023-09-01

Deskripsi

Solar spicules are small-scale jet-like structures in the lower solar atmosphere. Currently, the formation of these widely distributed structures lacks a complete explanation. It is still unclear whether they play an essential role in corona heating. Here, based on the magnetohydrodynamic scaling transformation relation, we perform experiments with the interaction of a high power laser with a one-dimensional sinusoidal modulated target to model solar spicules. We observe several spicule-like structures with alternating polarity magnetic fields around them. Magnetohydrodynamic simulations with similar parameters show the detail information during the spicules’ formation. The results suggest that the so-called strong pulse model can lead to the formation of the solar spicules. The magnetic reconnection process may also play a part and lead to additional heating and brightening phenomena.