中国科学院云南天文台机构知识库
Advanced  
YNAO OpenIR  > 抚仙湖太阳观测站  > 期刊论文
题名:
The Characteristics of Thin Magnetic Flux Tubes in the Lower Solar Atmosphere Observed by Hinode/SOT in the G band and in Ca II H Bright Points
作者: Xiong, Jianping1; Yang, Yunfei1,2; Jin, Chunlan2; Ji KF(季凯帆)3; Feng, Song1,2; Wang F(王锋)1,3; Deng, Hui1; Hu, Yu1
刊名: ASTROPHYSICAL JOURNAL
出版日期: 2017-12-10
卷号: 851, 期号:1
DOI: 10.3847/1538-4357/aa9a44
学科分类: 天文学
产权排序: 第3完成单位
收录类别: SCI
通讯作者: Yang, Yunfei(Kunming Univ Sci & Technol, Fac Informat Engn & Automat, Yunnan Key Lab Comp Technol Applicat, Kunming 650500, Yunnan, Peoples R China)
关键词: methods: data analysis ; methods: statistical ; Sun: chromosphere ; Sun: magnetic fields ; Sun: photosphere
英文摘要: Photospheric bright points (PBPs) and chromospheric bright points (CBPs) reflect the cross sections of magnetic flux tubes at different heights of the lower solar atmosphere. We aim to study the fine 3D structures and transportation dynamics of the magnetic flux tubes using G-band and simultaneous Ca II H image-series from the Solar Optical Telescope (SOT) on board Hinode. A 3D track-while-detect method is proposed to detect and track PBPs and CBPs. The mean values of equivalent diameters, maximum intensity contrasts, transverse velocities, motion ranges, motion types, and diffusion indices of PBPs and CBPs are 180 +/- 20 and 210 +/- 30 km, 1.0 +/- 0.1 < IQS-G > and 1.2 +/- 0.1 < IQS-Ca >, 1.6 +/- 0.8 and 2.7 +/- 1.4 km s(-1), 1.5 +/- 0.6 and 1.7 +/- 0.8, 0.8 +/- 0.2 and 0.6 +/- 0.2, and 1.7 +/- 0.7 and 1.3 +/- 0.7, respectively. Moreover, the ratios of each CBP characteristics to its corresponding PBP are derived to explore the change rates of the flux tubes. The corresponding ratios are 1.2 +/- 0.2, 1.2 +/- 0.1, 1.9 +/- 0.1, 1.4 +/- 0.3, 0.7 +/- 0.2, and 0.9 +/- 0.4, respectively. The statistical results imply that the majority magnetic flux tubes expand slightly with increasing solar height, look brighter than their surroundings, show a higher transverse velocity, a wider motion range, and a more erratic path, but the majority of the flux tubes diffuse slightly slower. The phenomenon might be explained by the conservation of momentum combined with a decrease in density. The more erratic path leads to a swing or twist of the flux tubes and therefore guides magnetohydrodynamic waves.
项目资助者: National Natural Science Foundation of China(11763004, 11573012, 11303011, 11463003, U1531132) ; Open Research Program of the Key Laboratory of Solar Activity of the Chinese Academy of Sciences(KLSA201604)
语种: 英语
原文出处: 查看原文
ISSN号: 0004-637X
文章类型: Article
WOS标题词: Science & Technology ; Physical Sciences
研究领域[WOS]: Astronomy & Astrophysics
类目[WOS]: Astronomy & Astrophysics
关键词[WOS]: QUIET SUN ; OPTICAL TELESCOPE ; ACTIVE-REGION ; FIELDS ; SIZE ; PHOTOSPHERE ; DYNAMICS ; NETWORK ; MOTIONS ; CHROMOSPHERE
WOS记录号: WOS:000417808300002
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ynao.ac.cn/handle/114a53/12090
Appears in Collections:抚仙湖太阳观测站_期刊论文

Files in This Item:
File Name/ File Size Content Type Version Access License
The Characteristics of Thin Magnetic Flux Tubes in the Lower Solar Atmosphere Observed by Hinode_SOT in the G band and in Ca ii H Bright Points.pdf(3270KB)期刊论文出版稿限制开放View 联系获取全文

作者单位: 1.Faculty of Information Engineering and Automation/Yunnan Key Laboratory of Computer Technology Application, Kunming University of Science and Technology, Kunming 650500, Yunnan, China
2.CAS Key Laboratory of Solar Activity, National Astronomical Observatories, Beijing 100012, China
3.Yunnan Observatory, Chinese Academy of Sciences, Yunnan 650011, China

Recommended Citation:
Xiong, Jianping,Yang, Yunfei,Jin, Chunlan,et al. The Characteristics of Thin Magnetic Flux Tubes in the Lower Solar Atmosphere Observed by Hinode/SOT in the G band and in Ca II H Bright Points[J]. ASTROPHYSICAL JOURNAL,2017,851(1).
Service
打印该条目
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Xiong, Jianping]'s Articles
[Yang, Yunfei]'s Articles
[Jin, Chunlan]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Xiong, Jianping]‘s Articles
[Yang, Yunfei]‘s Articles
[Jin, Chunlan]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: The Characteristics of Thin Magnetic Flux Tubes in the Lower Solar Atmosphere Observed by Hinode_SOT in the G band and in Ca ii H Bright Points.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2018  中国科学院云南天文台 - Feedback
Powered by CSpace