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Solar Intranetwork Magnetic Elements: Bipolar Flux Appearance
Wang, Jingxiu1; Zhou, Guiping1; Jin, Chunlan1; Li, Hui2
2012-06-01
Source PublicationSOLAR PHYSICS
ISSN0038-0938
Volume278Issue:2Pages:299-322
AbstractThis study aims to quantify characteristic features of the bipolar flux appearance of solar intranetwork (IN) magnetic elements. To attack this problem, we use the Narrowband Filter Imager (NFI) magnetograms from the Solar Optical Telescope (SOT) on board Hinode; these data are from quiet and enhanced network areas. Cluster emergence of mixed polarities and IN ephemeral regions (ERs) are the most conspicuous forms of bipolar flux appearance within the network. Each of the clusters is characterized by a few well-developed ERs that are partially or fully coaligned in magnetic axis orientation. On average, the sampled IN ERs have a total maximum unsigned flux of several 10(17) Mx, a separation of 3 -aEuro parts per thousand 4 arcsec, and a lifetime of 10 -aEuro parts per thousand 15 minutes. The smallest IN ERs have a maximum unsigned flux of several 10(16) Mx, separations of less than 1 arcsec, and lifetimes as short as 5 minutes. Most IN ERs exhibit a rotation of their magnetic axis of more than 10 degrees during flux emergence. Peculiar flux appearance, e.g., bipole shrinkage followed by growth or the reverse, is not unusual. A few examples show repeated shrinkage-growth or growth-shrinkage, like magnetic floats in the dynamic photosphere. The observed bipolar behavior seems to carry rich information on magnetoconvection in the subphotospheric layer.
KeywordSun: Activity Sun: Magnetic Field Sun: Photosphere Sun: Intranetwork
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1007/s11207-012-9950-7
WOS KeywordINTERNETWORK QUIET SUN ; EPHEMERAL ACTIVE REGIONS ; BRIGHT POINTS ; X-RAY ; RESOLUTION OBSERVATIONS ; FIELDS ; PHOTOSPHERE ; EMERGENCE ; SUNSPOT ; NETWORK
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000303396200005
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/8033
Collection太阳高能及相关物理过程研究团组
Affiliation1.Chinese Acad Sci, Key Lab Solar Act, Natl Astron Observ, Beijing 100012, Peoples R China
2.Chinese Acad Sci, Key Lab Dark Matter & Space Astron, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Wang, Jingxiu,Zhou, Guiping,Jin, Chunlan,et al. Solar Intranetwork Magnetic Elements: Bipolar Flux Appearance[J]. SOLAR PHYSICS,2012,278(2):299-322.
APA Wang, Jingxiu,Zhou, Guiping,Jin, Chunlan,&Li, Hui.(2012).Solar Intranetwork Magnetic Elements: Bipolar Flux Appearance.SOLAR PHYSICS,278(2),299-322.
MLA Wang, Jingxiu,et al."Solar Intranetwork Magnetic Elements: Bipolar Flux Appearance".SOLAR PHYSICS 278.2(2012):299-322.
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