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OSCILLATION OF NEWLY FORMED LOOPS AFTER MAGNETIC RECONNECTION IN THE SOLAR CHROMOSPHERE
Yang, Shuhong1,2; Xiang YY(向永源)3
Source PublicationASTROPHYSICAL JOURNAL LETTERS
2016-03-10
Volume819Issue:2
DOI10.3847/2041-8205/819/2/L24
Contribution Rank第3完成单位
Indexed BySCI
KeywordMagnetic Reconnection Sun: Chromosphere Sun: Evolution Sun: Oscillations
Abstract

With the high spatial and temporal resolution Ha images from the New Vacuum Solar Telescope, we focus on two groups of loops with an X-shaped configuration in the dynamic chromosphere. We find that the anti-directed loops approach each other and reconnect continually. The connectivity of the loops is changed and new loops are formed and stack together. The stacked loops are sharply bent, implying that they are greatly impacted by the magnetic tension force. When another reconnection process takes place, one new loop is formed and stacks with the previously formed ones. Meanwhile, the stacked loops retract suddenly and move toward the balance position, performing an overshoot movement, which led to an oscillation with an average period of about 45 s. The oscillation of newly formed loops after magnetic reconnection in the chromosphere is observed for the first time. We suggest that the stability of the stacked loops is destroyed due to the attachment of the last new loop and then suddenly retract under the effect of magnetic tension. Because of the retraction, another lower loop is pushed outward and performs an oscillation with a period of about 25 s. The different oscillation periods may be due to their difference in three parameters, i.e., loop length, plasma density, and magnetic field strength.

Funding ProjectNational Natural Science Foundations of China[11533008] ; National Natural Science Foundations of China[11203037] ; National Natural Science Foundations of China[11221063] ; National Natural Science Foundations of China[11373004] ; National Natural Science Foundations of China[11303049] ; Strategic Priority Research Program-The Emergence of Cosmological Structures of the Chinese Academy of Sciences[XDB09000000] ; CAS Project[KJCX2-EW-T07] ; Young Researcher Grant of National Astronomical Observatories of CAS ; Youth Innovation Promotion Association of CAS[2014043]
Funding OrganizationNational Natural Science Foundations of China[11533008, 11203037, 11221063, 11373004, 11303049] ; Strategic Priority Research Program-The Emergence of Cosmological Structures of the Chinese Academy of Sciences[XDB09000000] ; CAS Project[KJCX2-EW-T07] ; Young Researcher Grant of National Astronomical Observatories of CAS ; Youth Innovation Promotion Association of CAS[2014043]
Language英语
Subject Area天文学 ; 太阳与太阳系 ; 太阳物理学 ; 太阳系形成与演化
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN2041-8205
URL查看原文
WOS IDWOS:000371788300008
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordFLARE ; FIELD ; JETS ; FLUX ; SUN
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/9354
Collection抚仙湖太阳观测站
Corresponding AuthorYang, Shuhong
Affiliation1.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
2.College of Astronomy and Space Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
3.Fuxian Solar Observatory, Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
Recommended Citation
GB/T 7714
Yang, Shuhong,Xiang YY. OSCILLATION OF NEWLY FORMED LOOPS AFTER MAGNETIC RECONNECTION IN THE SOLAR CHROMOSPHERE[J]. ASTROPHYSICAL JOURNAL LETTERS,2016,819(2).
APA Yang, Shuhong,&Xiang YY.(2016).OSCILLATION OF NEWLY FORMED LOOPS AFTER MAGNETIC RECONNECTION IN THE SOLAR CHROMOSPHERE.ASTROPHYSICAL JOURNAL LETTERS,819(2).
MLA Yang, Shuhong,et al."OSCILLATION OF NEWLY FORMED LOOPS AFTER MAGNETIC RECONNECTION IN THE SOLAR CHROMOSPHERE".ASTROPHYSICAL JOURNAL LETTERS 819.2(2016).
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