NUMERICAL EXAMINATION OF PLASMOID-INDUCED RECONNECTION MODEL FOR SOLAR FLARES: THE RELATION BETWEEN PLASMOID VELOCITY AND RECONNECTION RATE

被引：25

作者：

Nishida, Keisuke ^{[1
]}

Shimizu, Masaki ^{[2
]}

Shiota, Daikou ^{[3
]}

Takasaki, Hiroyuki ^{[4
]}

Magara, Tetsuya ^{[3
]}

Shibata, Kazunari ^{[1
]}

机构：

[1] Kyoto Univ, Kwasan & Hida Observat, Kyoto 6078471, Japan

[2] Kyoto Univ, Dept Mech Engn & Sci, Kyoto 6068501, Japan

[3] Natl Astron Observ, Mitaka, Tokyo 1818588, Japan

[4] Accenture Japan Ltd, Minato Ku, Tokyo 1078672, Japan

来源：

ASTROPHYSICAL JOURNAL | 2009年 / 690卷 / 01期

关键词：

MHD; Sun: corona; Sun: flares; CORONAL MASS EJECTIONS; X-RAY TELESCOPE; MAGNETIC RECONNECTION; ERUPTIVE FLARES; EMERGING FLUX; LOOP TOP; SIMULATION; EVOLUTION; JETS; FILAMENT;

D O I：

10.1088/0004-637X/690/1/748

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The plasmoid-induced reconnection model explaining solar flares based on bursty reconnection produced by an ejecting plasmoid suggests a possible relation between the ejection velocity of a plasmoid and the rate of magnetic reconnection. In this study, we focus on the quantitative description of this relation. We performed magnetohydrodynamic simulations of solar flares by changing the values of resistivity and the plasmoid velocity. The plasmoid velocity has been changed by applying an additional force to the plasmoid to see how the plasmoid velocity affects the reconnection rate. An important result is that the reconnection rate has a positive correlation with the plasmoid velocity, which is consistent with the plasmoid-induced reconnection model for solar flares. We also discuss an observational result supporting this positive correlation.

引用

页码：748 / 757

页数：10

共 7 条

[1] Plasmoid-Induced Turbulence in Collisionless Magnetic Reconnection
Fujimoto, Keizo
Sydora, Richard D.
[J]. PHYSICAL REVIEW LETTERS, 2012, 109 (26)
[2] Magnetic reconnection plasmoid model for Sagittarius A* flares
Aimar, N.
Dmytriiev, A.
Vincent, F. H.
El Mellah, I.
Paumard, T.
Perrin, G.
Zech, A.
[J]. ASTRONOMY & ASTROPHYSICS, 2023, 672
[3] The relation between the energy conversion rate and reconnection rate in Petschek-type reconnection-Implications for solar flares
Goodbred, Matthew
Liu, Yi-Hsin
Chen, Bin
Li, Xiaocan
[J]. PHYSICS OF PLASMAS, 2021, 28 (08)
[4] Anomalous-plasmoid-ejection-induced secondary magnetic reconnection: modeling solar flares and coronal mass ejections by laser–plasma experiments
Quanli Dong
Dawei Yuan
Shoujun Wang
Xun Liu
Yutong Li
Xiaoxuan Lin
Huigang Wei
Jiayong Zhong
Shaoen Jiang
Yongkun Ding
Bobin Jiang
Kai Du
Yongjian Tang
Mingyang Yu
Xiantu He
Neng Hua
Zhanfeng Qiao
Kuixi Huang
Ming Chen
Jianqiang Zhu
Gang Zhao
Zhengming Sheng
Jie Zhang
[J]. High Power Laser Science and Engineering, 2013, 1 (01) : 11 - 16
[5] Anomalous-plasmoid-ejection-induced secondary magnetic reconnection: modeling solar flares and coronal mass ejections by laser-plasma experiments
Dong, Quanli
Yuan, Dawei
Wang, Shoujun
Liu, Xun
Li, Yutong
Lin, Xiaoxuan
Wei, Huigang
Zhong, Jiayong
Jiang, Shaoen
Ding, Yongkun
Jiang, Bobin
Du, Kai
Tang, Yongjian
Yu, Mingyang
He, Xiantu
Hua, Neng
Qiao, Zhanfeng
Huang, Kuixi
Chen, Ming
Zhu, Jianqiang
Zhao, Gang
Sheng, Zhengming
Zhang, Jie
[J]. HIGH POWER LASER SCIENCE AND ENGINEERING, 2013, 1 (01) : 11 - 16
[6] The Direct Relation between the Duration of Magnetic Reconnection and the Evolution of GOES Light Curves in Solar Flares
Reep, Jeffrey W.
Toriumi, Shin
[J]. ASTROPHYSICAL JOURNAL, 2017, 851 (01):
[7] The correlation among the rise velocity of a soft X-ray loop, the ejection velocity of a plasmoid, and the height above the loop top of the hard X-ray source in Masuda-type flares, and its interpretation based on the reconnection model of flares
Shimizu, M.
Nishida, K.
Takasaki, H.
Shiota, D.
Magara, T.
Shibata, K.
[J]. ASTROPHYSICAL JOURNAL LETTERS, 2008, 683 (02) : L203 - L206

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