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SIMULTANEOUS OBSERVATIONS OF A LARGE-SCALE WAVE EVENT IN THE SOLAR ATMOSPHERE: FROM PHOTOSPHERE TO CORONA
Shen YD(申远灯)1,2; Liu Y(刘煜)1; Shen, YD (reprint author), Chinese Acad Sci, Yunnan Astron Observ, Kunming 650011, Peoples R China.
Source PublicationASTROPHYSICAL JOURNAL LETTERS
2012-06-20
Volume752Issue:2
DOI10.1088/2041-8205/752/2/L23
Contribution Rank第1完成单位
Indexed BySCI
KeywordSun: Activity Sun: Chromosphere Sun: Corona Sun: Flares Sun: Transition Region
AbstractFor the first time, we report a large-scale wave that was observed simultaneously in the photosphere, chromosphere, transition region, and low corona layers of the solar atmosphere. Using the high temporal and high spatial resolution observations taken by the Solar Magnetic Activity Research Telescope at Hida Observatory and the Atmospheric Imaging Assembly (AIA) on board Solar Dynamic Observatory, we find that the wave evolved synchronously at different heights of the solar atmosphere, and it propagated at a speed of 605 km s(-1) and showed a significant deceleration (-424 ms(-2)) in the extreme-ultraviolet (EUV) observations. During the initial stage, the wave speed in the EUVobservations was 1000 km s(-1), similar to those measured from the AIA 1700 angstrom (967 km s(-1)) and 1600 angstrom (893 km s(-1)) observations. The wave was reflected by a remote region with open fields, and a slower wave-like feature at a speed of 220 km s(-1) was also identified following the primary fast wave. In addition, a type-II radio burst was observed to be associated with the wave. We conclude that this wave should be a fast magnetosonic shock wave, which was first driven by the associated coronal mass ejection and then propagated freely in the corona. As the shock wave propagated, its legs swept the solar surface and thereby resulted in the wave signatures observed in the lower layers of the solar atmosphere. The slower wave-like structure following the primary wave was probably caused by the reconfiguration of the low coronal magnetic fields, as predicted in the field-line stretching model.
Funding OrganizationNatural Science Foundation of China [10933003, 11078004, 11073050] ; National Key Research Science Foundation [2011CB811400]
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN2041-8205
URL查看原文
Archive Date2012-07-02
WOS IDWOS:000305461600006
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordEXTREME-ULTRAVIOLET WAVE ; X-RAY OBSERVATIONS ; I 10830 ANGSTROM ; H-ALPHA MORETON ; 2006 DECEMBER 6 ; EIT WAVES ; EUV WAVE ; NUMERICAL-SIMULATION ; IMAGING TELESCOPE ; MASS EJECTION
Citation statistics
Cited Times:32[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/7184
Collection选址与日冕观测组
Corresponding AuthorShen, YD (reprint author), Chinese Acad Sci, Yunnan Astron Observ, Kunming 650011, Peoples R China.
Affiliation1.Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming 650011, China
2.Graduate University of Chinese Academy of Sciences, Beijing 100049, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Shen YD,Liu Y,Shen, YD . SIMULTANEOUS OBSERVATIONS OF A LARGE-SCALE WAVE EVENT IN THE SOLAR ATMOSPHERE: FROM PHOTOSPHERE TO CORONA[J]. ASTROPHYSICAL JOURNAL LETTERS,2012,752(2).
APA Shen YD,Liu Y,&Shen, YD .(2012).SIMULTANEOUS OBSERVATIONS OF A LARGE-SCALE WAVE EVENT IN THE SOLAR ATMOSPHERE: FROM PHOTOSPHERE TO CORONA.ASTROPHYSICAL JOURNAL LETTERS,752(2).
MLA Shen YD,et al."SIMULTANEOUS OBSERVATIONS OF A LARGE-SCALE WAVE EVENT IN THE SOLAR ATMOSPHERE: FROM PHOTOSPHERE TO CORONA".ASTROPHYSICAL JOURNAL LETTERS 752.2(2012).
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