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The formation of an equatorial coronal hole
Yang LH(杨丽恒)1; Jiang YC(姜云春)1; Zhang, Jun2
Source PublicationIAU Symposium Proceedings Series - SOLAR AND STELLAR VARIABILITY: IMPACT ON EARTH AND PLANETS
2010
Volume5
Issue264
Pages295-297
DOI10.1017/S1743921309992833
Author of SourceKosoviechev, AG; Andrei, AH; Rozelot, JP
Contribution Rank第1完成单位
Indexed ByCPCI
Conference Name264th Symposium of the International-Astronomical-Union
Conference Date2009-08-03
Conference PlaceRio de Janeiro, BRAZIL
Conference SponsorInt Astron Union; Observ Nacl; IAU Div II, III & IV
KeywordSun: Corona Sun:Evolution Sun: Magnetic Fields
Abstract

The formation of an equatorial corona] hole (CH) from 2006 January 9 to 12 was simultaneously observed by GOES-12/SXI, SOHO/EIT and SOHO/MDI instruments. The varieties of soft X-ray and EUV brightness, coronal temperature; and total magnetic flux in the CH were examined and compared with that of a quiet-sun (QS) region nearby. The following results are obtained. (1) A preexisting dark lane appeared on the location of the followed CH and was reinforced by three enhanced networks. (2) The CH gradually formed in about 81 hours and was predominated by positive magnetic flux. (3) During the formation, the soft X-ray and EUV brightness, coronal temperature, and total magnetic flux obviously decreased in the CH, but were almost no change in the QS region. The decrease of the total magnetic flux may be the result of magnetic reconnection between the open and closed magnetic lines; probably indicating the physical mechanism for the birth of the CH.

Funding Project973 program[0797311005]
Funding Organization973 program
Language英语
Subject Area天文学 ; 天体物理学 ; 太阳与太阳系
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeProceedings Paper
PublisherCAMBRIDGE UNIV PRESS
Publication PlaceTHE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND
ISBN978-0-521-76492-6
ISSN1743-9213
URL查看原文
Archive Date2010-03-28
WOS IDWOS:000280547700053
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordImager
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Document Type会议论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6562
Collection太阳物理研究组
Corresponding AuthorYang LH(杨丽恒)
Affiliation1.National Astronomical Observatories/Yunnan Observatory, CAS, Kunming 650011, China
2.National Astronomical Observatories, CAS, Beijing 100012, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Yang LH,Jiang YC,Zhang, Jun. The formation of an equatorial coronal hole[C]//Kosoviechev, AG; Andrei, AH; Rozelot, JP. THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND:CAMBRIDGE UNIV PRESS,2010:295-297.
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