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The dynamics of 3-min wavefronts and their relation to sunspot magnetic fields
Sych, Robert1; Jess, David B.2; Su, Jiangtao3,4
2021-02-08
Source PublicationPHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
ISSN1364-503X
Volume379Issue:2190Pages:18
AbstractWe present a study of wave processes occurring in solar active region NOAA 11131 on 10 December 2010, captured by the Solar Dynamics Observatory in the 1600 angstrom, 304 angstrom and 171 angstrom channels. For spectral analysis, we employed pixelized wavelet filtering together with a developed digital technique based on empirical mode decomposition. We studied the similar to 3-minute wave dynamics to obtain relationships with the magnetic structuring of the underlying sunspot. We found that during development of wave trains the motion path occurred along a preferential direction, and that the broadband wavefronts can be represented as a set of separate narrowband oscillation sources. These sources become visible as the waves pass through the umbral inhomogeneities caused by the differing magnetic field inclination angles. We found the spatial and frequency fragmentation of wavefronts, and deduced that the combination of narrowband spherical and linear parts of the wavefronts provide the observed spirality. Maps of the magnetic field inclination angles confirm this assumption. We detect the activation of umbral structures as the increasing of oscillations in the sources along the front ridge. Their temporal dynamics are associated with the occurrence of umbral flashes. Spatial localization of the sources is stable over time and depends on the oscillation period. We propose that these sources are the result of wave paths along the loops extending outwards from the magnetic bundles of the umbra. This article is part of the Theo Murphy meeting issue 'High-resolution wave dynamics in the lower solar atmosphere'.
Keywordsunspot oscillations waves solar atmosphere magnetic field wavefront
Funding OrganizationFR program ; FR program ; RAS program ; RAS program ; Russian Foundation for Basic Research (RFBR) ; Russian Foundation for Basic Research (RFBR) ; Chinese Academy of Sciences President's International Fellowship Initiative ; Chinese Academy of Sciences President's International Fellowship Initiative ; Research & Development by Invest NI ; Research & Development by Invest NI ; Randox Laboratories Ltd. ; Randox Laboratories Ltd. ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; FR program ; FR program ; RAS program ; RAS program ; Russian Foundation for Basic Research (RFBR) ; Russian Foundation for Basic Research (RFBR) ; Chinese Academy of Sciences President's International Fellowship Initiative ; Chinese Academy of Sciences President's International Fellowship Initiative ; Research & Development by Invest NI ; Research & Development by Invest NI ; Randox Laboratories Ltd. ; Randox Laboratories Ltd. ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; FR program ; FR program ; RAS program ; RAS program ; Russian Foundation for Basic Research (RFBR) ; Russian Foundation for Basic Research (RFBR) ; Chinese Academy of Sciences President's International Fellowship Initiative ; Chinese Academy of Sciences President's International Fellowship Initiative ; Research & Development by Invest NI ; Research & Development by Invest NI ; Randox Laboratories Ltd. ; Randox Laboratories Ltd. ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; FR program ; FR program ; RAS program ; RAS program ; Russian Foundation for Basic Research (RFBR) ; Russian Foundation for Basic Research (RFBR) ; Chinese Academy of Sciences President's International Fellowship Initiative ; Chinese Academy of Sciences President's International Fellowship Initiative ; Research & Development by Invest NI ; Research & Development by Invest NI ; Randox Laboratories Ltd. ; Randox Laboratories Ltd. ; National Natural Science Foundation of China ; National Natural Science Foundation of China
DOI10.1098/rsta.2020.0180
WOS KeywordOSCILLATIONS
Language英语
Funding ProjectFR program[II.16] ; RAS program[KP19270] ; Russian Foundation for Basic Research (RFBR)[17-52-80064 BRICS-a] ; Chinese Academy of Sciences President's International Fellowship Initiative[2020VMA0032] ; Research & Development by Invest NI[059RDEN-1] ; Randox Laboratories Ltd.[059RDEN-1] ; National Natural Science Foundation of China[11773038]
Funding OrganizationFR program ; FR program ; RAS program ; RAS program ; Russian Foundation for Basic Research (RFBR) ; Russian Foundation for Basic Research (RFBR) ; Chinese Academy of Sciences President's International Fellowship Initiative ; Chinese Academy of Sciences President's International Fellowship Initiative ; Research & Development by Invest NI ; Research & Development by Invest NI ; Randox Laboratories Ltd. ; Randox Laboratories Ltd. ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; FR program ; FR program ; RAS program ; RAS program ; Russian Foundation for Basic Research (RFBR) ; Russian Foundation for Basic Research (RFBR) ; Chinese Academy of Sciences President's International Fellowship Initiative ; Chinese Academy of Sciences President's International Fellowship Initiative ; Research & Development by Invest NI ; Research & Development by Invest NI ; Randox Laboratories Ltd. ; Randox Laboratories Ltd. ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; FR program ; FR program ; RAS program ; RAS program ; Russian Foundation for Basic Research (RFBR) ; Russian Foundation for Basic Research (RFBR) ; Chinese Academy of Sciences President's International Fellowship Initiative ; Chinese Academy of Sciences President's International Fellowship Initiative ; Research & Development by Invest NI ; Research & Development by Invest NI ; Randox Laboratories Ltd. ; Randox Laboratories Ltd. ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; FR program ; FR program ; RAS program ; RAS program ; Russian Foundation for Basic Research (RFBR) ; Russian Foundation for Basic Research (RFBR) ; Chinese Academy of Sciences President's International Fellowship Initiative ; Chinese Academy of Sciences President's International Fellowship Initiative ; Research & Development by Invest NI ; Research & Development by Invest NI ; Randox Laboratories Ltd. ; Randox Laboratories Ltd. ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000601321200010
PublisherROYAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/80385
Collection中国科学院国家天文台
Corresponding AuthorSych, Robert
Affiliation1.RAS, Inst Solar Terr Phys SB, Irkutsk 664033, Russia
2.Queens Univ Belfast, Sch Math & Phys, Astrophys Res Ctr, Belfast BT7 1NN, Antrim, North Ireland
3.Chinese Acad Sci, Key Lab Solar Act, Natl Astron Observ, Beijing 100101, Peoples R China
4.Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Sych, Robert,Jess, David B.,Su, Jiangtao. The dynamics of 3-min wavefronts and their relation to sunspot magnetic fields[J]. PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES,2021,379(2190):18.
APA Sych, Robert,Jess, David B.,&Su, Jiangtao.(2021).The dynamics of 3-min wavefronts and their relation to sunspot magnetic fields.PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES,379(2190),18.
MLA Sych, Robert,et al."The dynamics of 3-min wavefronts and their relation to sunspot magnetic fields".PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES 379.2190(2021):18.
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