PMO OpenIR  > 太阳活动的多波段观测研究团组
Statistical study of UV bright points and magnetic elements from SDO observations
Li, D.1,2; Ning, Z. J.1; Wang, J. F.3
2013-10-01
Source PublicationNEW ASTRONOMY
ISSN1384-1076
Volume23-24Pages:19-26
AbstractWe have investigated the ultraviolet bright points (UVBPs) in 14 quiet regions near the solar disk center observed by Atmospheric Imaging Assembly (AIA) onboard Solar Dynamics Observatory (SDO) from 19 to 25 in August 2010. Each region has a size of 200 x 200 arcsecs(2). In total, 2722 UVBPs at 1600 angstrom and 2963 UVBPs at 1700 angstrom are determined from the bright pixels above the mean value plus three time deviation of the background emission. Each UVBP has a minor size of 25 pixels (about 93 arcsecs(2)). The frequency distributions of these UVBPs occurrence as functions of brightness and size (area) exhibit a power-law behavior, i.e. dN/dx proportional to x-(alpha x), with an index of alpha(B) = 1.91 +/- 0.03 at 1600 angstrom and alpha(B) = 1.87 +/- 0.02 at 1700 angstrom for the brightness, and of alpha(S) = 1.95 +/- 0.03 at 1600 angstrom and alpha(S) = 2.01 +/- 0.03 at 1700 angstrom for the size. We find that these UVBPs show a South-East direction orientation (theta) on the solar disk, whatever on the northern or southern hemispheres. We also find that the UVBPs are strongly related to the magnetic elements, which are identified from Helioseismic and Magnetic Imager (HMI) observations, indicating that the UVBPs origination from the magnetic elements. (C) 2013 Elsevier B.V. All rights reserved.
KeywordBright Points Uv Radiation Magnetic Elements Corona
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.newast.2013.02.002
WOS KeywordWAITING-TIME DISTRIBUTION ; CORONAL MASS EJECTIONS ; X-RAY OBSERVATIONS ; FREQUENCY-DISTRIBUTIONS ; QUIET SUN ; TEMPORAL VARIATIONS ; PHOTOSPHERIC NETWORK ; SOLAR-FLARES ; FIELDS ; FLUX
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000319247200003
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/9959
Collection太阳活动的多波段观测研究团组
Corresponding AuthorLi, D.
Affiliation1.Purple Mt Observ, Key Lab Dark Matter & Space Sci, Nanjing 210008, Jiangsu, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Nanjing Univ Informat Sci & Technol, Sch Phys Optoelect Engn, Nanjing 210044, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Li, D.,Ning, Z. J.,Wang, J. F.. Statistical study of UV bright points and magnetic elements from SDO observations[J]. NEW ASTRONOMY,2013,23-24:19-26.
APA Li, D.,Ning, Z. J.,&Wang, J. F..(2013).Statistical study of UV bright points and magnetic elements from SDO observations.NEW ASTRONOMY,23-24,19-26.
MLA Li, D.,et al."Statistical study of UV bright points and magnetic elements from SDO observations".NEW ASTRONOMY 23-24(2013):19-26.
Files in This Item:
File Name/Size DocType Version Access License
2013177Statistical s(2397KB) 开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Li, D.]'s Articles
[Ning, Z. J.]'s Articles
[Wang, J. F.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li, D.]'s Articles
[Ning, Z. J.]'s Articles
[Wang, J. F.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li, D.]'s Articles
[Ning, Z. J.]'s Articles
[Wang, J. F.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 2013177Statistical study of UV bright points and magnetic elements from SDO observations.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.