PMO OpenIR  > 太阳和太阳系等离子体研究团组
INTERFERENCE OF THE RUNNING WAVES AT LIGHT BRIDGES OF A SUNSPOT
Su, J. T.1; Ji, K. F.2; Banerjee, D.3; Cao, W. D.4; Priya, T. G.1; Zhao, J. S.5; Yu, S. J.1; Ji, H. S.5; Zhang, M.1
2016
Source PublicationASTROPHYSICAL JOURNAL
Volume816Issue:1
AbstractThe observations of chromospheric oscillations of two umbral light bridges (LBs) within a sunspot from NOAA Active Region 12127 are presented. It was found that the running umbral waves with periods of 2.2-2.6 minutes underwent very fast damping before approaching umbral boundaries, while those with higher periods (>2.6 minutes) could propagate outside umbrae. On two sides of each LB adjacent to umbrae, the cross-wavelet spectra displayed that the oscillations on them had a common significant power region with dominant frequencies of 2-6 minutes and phase differences of similar to 90 degrees. A counterstream of two running umbral waves in the 2-6 minute frequency range propagated toward the LBs, where they encountered each other and gave rise to constructive or even destructive interference on the LBs. In addition, the velocity and density perturbations on the LBs were found in opposite phases suggesting that the perturbations were caused by the downward propagating
KeywordSun: Chromosphere Sun: Magnetic Fields Sun: Oscillations Sunspots Supporting Material: Animation
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.3847/0004-637X/816/1/30
WOS KeywordPENUMBRAL WAVES ; UMBRAL OSCILLATIONS ; CHROMOSPHERIC SUNSPOT ; ASSOCIATION ; PHOTOSPHERE ; DYNAMICS
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000368225100030
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/16092
Collection太阳和太阳系等离子体研究团组
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China
2.Kunming Univ Sci & Technol, Kunming 650093, Peoples R China
3.Indian Inst Astrophys, Bangalore 560034, Karnataka, India
4.Big Bear Solar Observ, Big Bear City, CA 92314 USA
5.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Su, J. T.,Ji, K. F.,Banerjee, D.,et al. INTERFERENCE OF THE RUNNING WAVES AT LIGHT BRIDGES OF A SUNSPOT[J]. ASTROPHYSICAL JOURNAL,2016,816(1).
APA Su, J. T..,Ji, K. F..,Banerjee, D..,Cao, W. D..,Priya, T. G..,...&Zhang, M..(2016).INTERFERENCE OF THE RUNNING WAVES AT LIGHT BRIDGES OF A SUNSPOT.ASTROPHYSICAL JOURNAL,816(1).
MLA Su, J. T.,et al."INTERFERENCE OF THE RUNNING WAVES AT LIGHT BRIDGES OF A SUNSPOT".ASTROPHYSICAL JOURNAL 816.1(2016).
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