NUMERICAL SIMULATIONS OF CHROMOSPHERIC MICROFLARES
NUMERICAL SIMULATIONS OF CHROMOSPHERIC MICROFLARES
复制标题
色球微耀斑的数值模拟
DOI:
10.1088/0004-637x/710/2/1387
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发表时间:
2010-02
影响因子:
4.9
通讯作者:
Chen, P. F.
中科院分区:
文献类型:
--
作者:
Jiang, R. L.;Fang, C.;Chen, P. F.
With gravity, ionization, and radiation being considered, we perform 2.5 dimensional (2.5D) compressible resistive magnetohydrodynamic (MHD) simulations of chromospheric magnetic reconnection using the CIP-MOCCT scheme. The temperature distribution of the quiet-Sun atmospheric model VALC and the helium abundance (10%) are adopted. Our 2.5D MHD simulation reproduces qualitatively the temperature enhancement observed in chromospheric microflares. The temperature enhancement ΔT is demonstrated to be sensitive to the background magnetic field, whereas the total evolution time Δt is sensitive to the magnitude of the anomalous resistivity. Moreover, we found a scaling law, which is described as ΔT/Δt ∼ nH−1.5B2.1η00.88. Our results also indicate that the velocity of the upward jet is much greater than that of the downward jet, and the X-point may move up or down.
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DOI:
10.1086/168989
发表时间:
1990-07
期刊:
The Astrophysical Journal
影响因子:
--
作者:
W. Gan;C. Fang
通讯作者:
W. Gan;C. Fang
DOI:
10.1088/0004-637x/692/1/492
发表时间:
2009-02
期刊:
The Astrophysical Journal
影响因子:
--
作者:
J. Brosius;G. Holman
通讯作者:
J. Brosius;G. Holman
DOI:
10.1086/340998
发表时间:
2002-08
期刊:
The Astrophysical Journal
影响因子:
--
作者:
T. Shimizu;R. Shine;A. Title;T. Tarbell;Z. Frank
通讯作者:
T. Shimizu;R. Shine;A. Title;T. Tarbell;Z. Frank
DOI:
10.1086/319440
发表时间:
2001-03
期刊:
The Astrophysical Journal
影响因子:
--
作者:
T. Yokoyama;K. Shibata
通讯作者:
T. Yokoyama;K. Shibata
DOI:
10.1088/1009-9271/1/2/176
发表时间:
2001-04
期刊:
Chinese Journal of Astronomy and Astrophysics
影响因子:
--
作者:
Pengfei Chen;C. Fang;M. Ding
通讯作者:
Pengfei Chen;C. Fang;M. Ding