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SDO OBSERVATIONS OF MAGNETIC RECONNECTION AT CORONAL HOLE BOUNDARIES
Yang, Shuhong1,2; Zhang, Jun1; Li, Ting1,2; Liu, Yang3
2011-05-01
Source PublicationASTROPHYSICAL JOURNAL LETTERS
Volume732Issue:1
AbstractWith the observations from the Atmospheric Imaging Assembly and the Helioseismic and Magnetic Imager on board the Solar Dynamics Observatory, we investigate the coronal hole boundaries (CHBs) of an equatorial extension of the polar coronal hole. At the CHBs, many extreme-ultraviolet jets, which appear to be the signatures of magnetic reconnection, are observed in the 193 angstrom images, and some jets occur repetitively at the same sites. The evolution of the jets is associated with the emergence and cancellation of magnetic fields. We note that both the east and west CHBs shift westward, and the shift velocities are close to the velocities of rigid rotation compared with those of the photospheric differential rotation. This indicates that magnetic reconnection at CHBs results in the evolution of CHBs and maintains the rigid rotation of coronal holes.
KeywordSun: Activity Sun: Corona Sun: Evolution Sun: Photosphere
DOI10.1088/2041-8205/732/1/L7
Indexed BySCI
Language英语
WOS IDWOS:000293129000007
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/7840
Collection太阳物理研究部
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100012, Peoples R China
3.Stanford Univ, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA
Recommended Citation
GB/T 7714
Yang, Shuhong,Zhang, Jun,Li, Ting,et al. SDO OBSERVATIONS OF MAGNETIC RECONNECTION AT CORONAL HOLE BOUNDARIES[J]. ASTROPHYSICAL JOURNAL LETTERS,2011,732(1).
APA Yang, Shuhong,Zhang, Jun,Li, Ting,&Liu, Yang.(2011).SDO OBSERVATIONS OF MAGNETIC RECONNECTION AT CORONAL HOLE BOUNDARIES.ASTROPHYSICAL JOURNAL LETTERS,732(1).
MLA Yang, Shuhong,et al."SDO OBSERVATIONS OF MAGNETIC RECONNECTION AT CORONAL HOLE BOUNDARIES".ASTROPHYSICAL JOURNAL LETTERS 732.1(2011).
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