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Running waves observed by Hinode
Liang HF(梁红飞)1,2; Yang, WG1; Ma, L1; Yang, RJ1
Source PublicationNEW ASTRONOMY
2012-02
Volume17Issue:2Pages:112-116
DOI10.1016/j.newast.2011.06.006
Contribution Rank第2完成单位
Indexed BySCI
KeywordSun: Sunspots Sun: Oscillations Running Waves
Abstract

High cadence (up to 9.6 s) intensity images of a sunspot within the active region NOAA 10953 were obtained by the SOT onboard Hinode with the line H alpha 6563 angstrom on April 30, 2007. The running difference images show that running waves periodically appear within the sunspot umbra and propagate outward forming full circles or partial arcs. The propagation velocity of the running waves decreases progressively when these waves run away from the umbra center. A special relationship between the propagation velocity v and the wavefront radius r of the running waves, v = k/r+r(0), implies that the running waves in Ha line may be fast magnetoacoustic waves. By using FFT, we determined the period of running waves as being approximately 275 s. (C) 2011 Elsevier B.V. All rights reserved.

Funding ProjectMEXT, Japan ; NAOJ ; National Science Foundation of China (NSFC)[10778726] ; National Science Foundation of China (NSFC)[10878014] ; National Science Foundation of China (NSFC)[11063005] ; National Science Foundation of China (NSFC)[40636031] ; National Science Foundation of China (NSFC)[40890161] ; Yunnan Science Foundation[2006A0027M] ; Yunnan Science Foundation[2009CD171] ; Yunnan Science Foundation[2009Z]
Funding OrganizationMEXT, Japan ; NAOJ ; National Science Foundation of China (NSFC)[10778726, 10878014, 11063005, 40636031, 40890161] ; Yunnan Science Foundation[2006A0027M, 2009CD171, 2009Z]
Language英语
Subject Area天文学 ; 太阳与太阳系
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherELSEVIER SCIENCE BV
Publication PlacePO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
ISSN1384-1076
URL查看原文
WOS IDWOS:000298129800010
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordSUNSPOT UMBRAL OSCILLATIONS ; PENUMBRAL WAVES ; CHROMOSPHERIC SUNSPOT ; VELOCITY ; REGION
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6212
Collection太阳物理研究组
Corresponding AuthorLiang HF(梁红飞)
Affiliation1.Yunnan Normal University, Kunming 650092, China
2.National Astronomical Observatories/Yunnan Observatory, CAS, Kunming 650011, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Liang HF,Yang, WG,Ma, L,et al. Running waves observed by Hinode[J]. NEW ASTRONOMY,2012,17(2):112-116.
APA Liang HF,Yang, WG,Ma, L,&Yang, RJ.(2012).Running waves observed by Hinode.NEW ASTRONOMY,17(2),112-116.
MLA Liang HF,et al."Running waves observed by Hinode".NEW ASTRONOMY 17.2(2012):112-116.
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