New Results of High-Resolution Helioseismology from Hinode

被引:0
|
作者
Kosovichev, A. [1 ]
Zhao, J. [1 ]
Sekii, T. [2 ]
Nagashima, K. [2 ]
Mitra-Kraev, U. [3 ]
机构
[1] Stanford Univ, WW Hansen Expt Phys Lab, Room 130-452 Lomita Mall, Stanford, CA 94305 USA
[2] Natl Astron Observ, Mitaka, Tokyo, Japan
[3] Univ Cambridge, Dept Appl Math & Theoret Phys, Cambridge, England
关键词
SOLAR OPTICAL TELESCOPE; SUNSPOT OSCILLATIONS; ACOUSTIC-WAVES;
D O I
暂无
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The Solar Optical Telescope of Hinode provides unique multiwavelength high-resolution data for local helioseismic diagnostics of the subsurface structure and dynamics of the Sun. The helioseismology data from Himode have allowed us for the first time to observe oscillations of very high angular degree and high frequencies, and substantially improve the spatial resolution of time-distance helioseismology in near-surface layers of the Sun, compared to the previous SOHO/MDI data. The Hinode data have also provided important insight on the nature of sunspot oscillations, and the correlated component of stochastic excitation. Initial attempts have been made to investigate the dynamics of the polar regions, critical for dynamo modeling, but previously unaccessible for helioseisrnology. In addition, a new type of flare-excited MHD oscillations was detected from Hinode observations of the solar flare of December 13, 2006.
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页码:41 / +
页数:2
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