Solar Magnetic Carpet I: Simulation of Synthetic Magnetograms
Solar Magnetic Carpet I: Simulation of Synthetic Magnetograms
复制标题
太阳能磁毯一:合成磁图模拟
DOI:
10.1007/s11207-011-9809-3
复制
发表时间:
2011
期刊:
影响因子:
2.8
通讯作者:
Meyer K
中科院分区:
文献类型:
--
作者:
Meyer K
This paper describes a new 2D model for the photospheric evolution of the magnetic carpet. It is the first in a series of papers working towards constructing a realistic 3D non-potential model for the interaction of small-scale solar magnetic fields. In the model, the basic evolution of the magnetic elements is governed by a supergranular flow profile. In addition, magnetic elements may evolve through the processes of emergence, cancellation, coalescence and fragmentation. Model parameters for the emergence of bipoles are based upon the results of observational studies. Using this model, several simulations are considered, where the range of flux with which bipoles may emerge is varied. In all cases the model quickly reaches a steady state where the rates of emergence and cancellation balance. Analysis of the resulting magnetic field shows that we reproduce observed quantities such as the flux distribution, mean field, cancellation rates, photospheric recycle time and a magnetic network. As expected, the simulation matches observations more closely when a larger, and consequently more realistic, range of emerging flux values is allowed (4×1016– 1019Mx). The model best reproduces the current observed properties of the magnetic carpet when we take the minimum absolute flux for emerging bipoles to be 4×1016Mx. In future, this 2D model will be used as an evolving photospheric boundary condition for 3D non-potential modeling.
登录
查看更多内容
DOI:
--
发表时间:
2004
期刊:
影响因子:
--
作者:
U. Paniveni;V. Krishan;Jagdev Singh;Raghavendra Srikanth
通讯作者:
Raghavendra Srikanth
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
L. M. Thornton
通讯作者:
L. M. Thornton
DOI:
10.1088/0004-637x/720/2/1405
发表时间:
2010-09
期刊:
The Astrophysical Journal
影响因子:
--
作者:
D. Lamb;C. Deforest;H. Hagenaar;C. Parnell;B. Welsch
通讯作者:
D. Lamb;C. Deforest;H. Hagenaar;C. Parnell;B. Welsch
DOI:
--
发表时间:
2000
期刊:
Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences
影响因子:
--
作者:
A. Title
通讯作者:
A. Title
影响因子:
6.5
作者:
H. Potts;R. Barrett;D. Diver
通讯作者:
H. Potts;R. Barrett;D. Diver