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On the Relationship Between G-Band Bright Point Dynamics and Their Magnetic Field Strengths
Yang, Yunfei1,2; Li, Qiang1; Ji, Kaifan1; Feng, Song1,2; Deng, Hui1; Wang F(王锋)1,3; Lin, Jiaben2; Ji, KF (reprint author), Kunming Univ Sci & Technol, Yunnan Key Lab Comp Technol Applicat, Fac Informat Engn & Automat, Kunming 650500, Peoples R China.
发表期刊SOLAR PHYSICS
2016-04-01
卷号291期号:4页码:1089-1105
DOI10.1007/s11207-016-0889-y
产权排序第3完成单位
收录类别SCI
关键词Bright Points Photosphere Dynamics Magnetic Magnetic Fields Photosphere
摘要G-band bright points (GBPs) are regarded as good manifestations of magnetic flux concentrations. We aim to investigate the relation between the dynamic properties of GBPs and their longitudinal magnetic field strengths. High spatial and temporal resolution observations were recorded simultaneously with G-band filtergrams and Narrow-band Filter Imager (NFI) Stokes I and V images with Hinode/Solar Optical Telescope. The GBPs are automatically identified and tracked in the G-band images, and the corresponding longitudinal magnetic field strength of each GBP is extracted from the calibrated NFI magnetograms by a point-to-point method. After categorizing the GBPs into five groups by their longitudinal magnetic field strengths, we analyzed the dynamics of each group of GBPs. The results suggest that with increasing longitudinal magnetic field strengths of GBPs correspond to a decrease in their horizontal velocities and motion ranges as well as by showing more complex motion paths. This suggests that magnetic elements showing weaker magnetic field strengths move faster and farther along straighter paths, while stronger elements move more slowly in more erratic paths within a smaller region. The dynamic behaviors of GBPs with different longitudinal magnetic field strengths can be explained by that the stronger flux concentrations withstand the convective flows much better than weaker ones.
项目资助者National Natural Science Foundation of China(11303011, 11573012, 11463003, U1231205) ; Open Research Program of the Key Laboratory of Solar Activity of the Chinese Academy of Sciences(KLSA201414, KLSA201505)
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0038-0938
URL查看原文
WOS记录号WOS:000378240000004
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]SOLAR OPTICAL TELESCOPE ; ACTIVE-REGION ; FLUX TUBES ; WAVE-PROPAGATION ; QUIET SUN ; PHOTOSPHERE ; SIMULATIONS ; CALIBRATION ; DISPERSAL ; ELEMENTS
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9615
专题其他
通讯作者Ji, KF (reprint author), Kunming Univ Sci & Technol, Yunnan Key Lab Comp Technol Applicat, Fac Informat Engn & Automat, Kunming 650500, Peoples R China.
作者单位1.Faculty of Information Engineering and Automation/Yunnan Key Laboratory of Computer Technology Application, Kunming University of Science and Technology, 650500, Kunming, China
2.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, 100012, Beijing, China
3.Yunnan Observatory, Chinese Academy of Sciences, 650011, Kunming, China
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Yang, Yunfei,Li, Qiang,Ji, Kaifan,et al. On the Relationship Between G-Band Bright Point Dynamics and Their Magnetic Field Strengths[J]. SOLAR PHYSICS,2016,291(4):1089-1105.
APA Yang, Yunfei.,Li, Qiang.,Ji, Kaifan.,Feng, Song.,Deng, Hui.,...&Ji, KF .(2016).On the Relationship Between G-Band Bright Point Dynamics and Their Magnetic Field Strengths.SOLAR PHYSICS,291(4),1089-1105.
MLA Yang, Yunfei,et al."On the Relationship Between G-Band Bright Point Dynamics and Their Magnetic Field Strengths".SOLAR PHYSICS 291.4(2016):1089-1105.
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