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REVISION OF SOLAR SPICULE CLASSIFICATION
Zhang, YZ1,2; Shibata, K2; Wang, JX1; Mao, XJ1,3; Matsumoto, T4; Liu Y(刘煜)5; Su, JT1; Zhang, YZ (reprint author), Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China.
Source PublicationASTROPHYSICAL JOURNAL
2012-05
Volume750Issue:1
DOI10.1088/0004-637X/750/1/16
Contribution Rank第5完成单位
Indexed BySCI
KeywordSun: Chromosphere Sun: Corona Sun: Transition Region
AbstractSolar spicules are the fundamental magnetic structures in the chromosphere and may play a key role in channeling the chromosphere and corona. Recently, it was suggested by De Pontieu et al. that there were two types of spicules with very different dynamic properties, which were detected by the space-time plot technique in the Ca II H line (3968 angstrom) wavelength from Hinode/Solar Optical Telescope observations. A "Type I" spicule with a 3-7-minute lifetime undergoes a cycle of upward and downward motions; by contrast, a "Type II" spicule fades away within dozens of seconds without a descending phase. We are motivated by the fact that for a spicule with complicated three-dimensional motion the space-time plot, which is made through a slit on a fixed position, could not match the spicule behavior all the time and might lose its real life story. By revisiting the same data sets, we identify and trace 105 and 102 spicules in the quiet Sun (QS) and coronal hole (CH), respectively, and obtain their statistical dynamic properties. First, we have not found a single convincing example of "Type II" spicules. Second, more than 60% of the identified spicules in each region show a complete cycle, i.e., the majority are "Type I" spicules. Third, the lifetimes of the spicules in the QS and CH are 148 s and 112 s, respectively, but there is no fundamental lifetime difference between the spicules in the QS and CH reported earlier. Therefore, the suggestion of coronal heating by "Type II" spicules should be taken with caution.
Funding OrganizationNational Astronomical Observatories, Chinese Academy of Sciences [118900KX3] ; National Natural Science Foundations of China [40890161, 40974112, 11025315, 11073050, 11003026] ; CAS [KJCX2-EW-T07] ; National Key Basic Research Science Foundation of China [2011CB811403] ; [Y07024A900]
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-637X
URL查看原文
WOS IDWOS:000303063500016
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordHIGH-RESOLUTION OBSERVATIONS ; OPTICAL TELESCOPE ; MAGNETIC-FIELDS ; ALFVEN WAVES ; HINODE ; LIMB ; MACROSPICULES ; CHROMOSPHERE ; WIND ; FLUX
Citation statistics
Cited Times:41[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/7186
Collection选址与日冕观测组
Corresponding AuthorZhang, YZ (reprint author), Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China.
Affiliation1.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
2.Kwasan and Hida Observatory, Kyoto University, Kamitakara, Gifu 506-1314, Japan
3.Department of Astronomy, Beijing Normal University, Beijing 100875, China
4.Department of Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8602, Japan
5.Yunnan Astronomical Observatory, National Astronomical Observatories, Chinese Academy of Sciences, Kunming 650011, China
Recommended Citation
GB/T 7714
Zhang, YZ,Shibata, K,Wang, JX,et al. REVISION OF SOLAR SPICULE CLASSIFICATION[J]. ASTROPHYSICAL JOURNAL,2012,750(1).
APA Zhang, YZ.,Shibata, K.,Wang, JX.,Mao, XJ.,Matsumoto, T.,...&Zhang, YZ .(2012).REVISION OF SOLAR SPICULE CLASSIFICATION.ASTROPHYSICAL JOURNAL,750(1).
MLA Zhang, YZ,et al."REVISION OF SOLAR SPICULE CLASSIFICATION".ASTROPHYSICAL JOURNAL 750.1(2012).
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