20 Mm Figure 9: Still from a movie showing Top: Vertical magnetic field(magnetogram) at the TRoss 1 level for the snapshot displayed in Figure 8. Magnetic field values are from -3 to 3 kG. Bottom: Magnetic field strength on vertical cut through the center of both sunspots. Values are from 0 to 10 kG. ( To watchthemoviepleasegototheonlineversionofthisreviewarticleathttp://www.livingreviews.org/ lrsp-2011-3 MHD三维模拟得到的黑子磁场精细结构. http://www.hao.ucar.eduresearch/lsv/lsvsunspotsBackgroundphp
MHD三维模拟得到的黑子磁场精细结构. http://www.hao.ucar.edu/research/lsv/lsvSunspotsBackground.php
四、黑子磁场的形成和衰减 1、黑子及太阳表面强磁通量管的形成。 a.磁浮力。 光球 光球 盲F B B B (a)磁通量管上升前 (b)磁通量管上升后 在水平方向上,磁通量管内外压力平衡,导致等离子体管内密度小于管 外密度,管获得一向上的浮力。 B B +nT=n7口F浮=(P-P)8 8兀 kT(8兀
四、黑子磁场的形成和衰减 1、黑子及太阳表面强磁通量管的形成。 a. 磁浮力。 2 8 i e B n T n T + = 光球 B B B (b) 磁通量管上升后 在水平方向上，磁通量管内外压力平衡，导致等离子体管内密度小于管 外密度，管获得一向上的浮力。 2 ( ) 8 H e i m g B F g kT = − = 浮 光球 B (a) 磁通量管上升前 F浮
黑子浮现形成过程示意卡通
黑子浮现形成过程示意卡通
10F 0 10 -30 10 0 10 30 x Mm Figure 14: Still from a movie showing Results from a flux emergence simulation in a 92 x 49 x8 Mm sized simulation domain. Top: Magnetogram at TRoss =0.1. Bottom: Magnetic field strength on vertical cut along the indicated red dashed line. The presented snapshot at 15.3 hours after initialization of the simulation run shows the formation of a pair of opposite polarity spots with about 3 10- Mx Hux. This figure is reproduced from Cheung et al.(2010) by permission of the AAS(To watch the movie, please go totheonlineversionofthisreviewarticleathttp://www.livingreviews.org/lrsp-2011-3.) 三维MH模拟的磁通量从光球层下浮现形成一对双极性黑子的过程
三维MHD模拟的磁通量从光球层下浮现形成一对双极性黑子的过程