中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Temporal Variation of Solar Coronal Rotation

文献类型:期刊论文

作者Xie JL(谢婧岚)1,2,3,4; Shi XJ(石祥军)1,3,4; Zhang J(张娟)1,2,4,5
刊名ASTROPHYSICAL JOURNAL
出版日期2017-05-20
卷号841期号:1
关键词Methods: Data Analysis Sun: Corona Sun: Rotation
ISSN号0004-637X
DOI10.3847/1538-4357/aa6d7d
产权排序第1完成单位
文献子类Article
英文摘要

In this paper, by applying the wavelet transformation analysis to the data of the daily 10.7 cm radio flux covering the period from 1947 February 14 to 2014 August 31, a significant period of about 27 days can be found, indicating the existence of rotational modulation in the temporal variation of the daily 10.7 cm radio flux. Then, the solar coronal rotation periods are obtained based on the result of the wavelet transformation analysis, and the temporal variation of the coronal rotation is revisited. We find that there exist significant periods of about 2.1, 3.0, 4.5, 6.6, 8.6, and 10.3 yr in the temporal variation of the coronal rotation. A possible period of 22.0 yr can also be found, but its statistical significance is below the 95% confidence level. The coronal rotation seems to show a weak decreasing trend during the considered time. The dependence of the coronal rotation on solar cycle phase is analyzed. The rotation periods are found to be varying with the solar cycle phase, and they are relatively longer around the minimum year of the solar cycle. The result based on the cross-correlation analysis between the rotation periods and the daily 10.7 cm radio flux indicates that there exists a phase difference of about 5.5 yr between them.

学科主题天文学 ; 太阳与太阳系
URL标识查看原文
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
WOS关键词SHORT-TERM PERIODICITIES ; SOHO-EIT IMAGES ; WAVELET TRANSFORM ANALYSES ; NORTH-SOUTH ASYMMETRY ; GROUP SUNSPOT NUMBERS ; MEAN MAGNETIC-FIELD ; X-RAY CORONA ; DIFFERENTIAL ROTATION ; RADIO FLUX ; PHASE RELATIONSHIP
资助项目National Natural Science Foundation of China[11573065] ; National Natural Science Foundation of China[11673061] ; National Natural Science Foundation of China[11633008] ; Applied Basic Research Foundation of Yunnan Province, China[2014FB190] ; Collaborating Research Program of CAS Key Laboratory of Solar Activity[KLSA201613] ; Specialized Research Fund for State Key Laboratories, Center for Astronomical Mega-Science ; Chinese Academy of Sciences
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000402310500028
出版者IOP PUBLISHING LTD
资助机构National Natural Science Foundation of China[11573065, 11673061, 11633008] ; Applied Basic Research Foundation of Yunnan Province, China[2014FB190] ; Collaborating Research Program of CAS Key Laboratory of Solar Activity[KLSA201613] ; Specialized Research Fund for State Key Laboratories, Center for Astronomical Mega-Science ; Chinese Academy of Sciences
源URL[http://ir.ynao.ac.cn/handle/114a53/10093]  
专题云南天文台_太阳物理研究组
通讯作者Xie JL(谢婧岚)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
2.University of Chinese Academy of Sciences, Beijing 100049, China
3.Key Laboratory of Solar Activity, National Astronomical Observatories, CAS, Beijing 100012, China
4.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100012, China
5.State Key Laboratory of Space Weather, Chinese Academy of Sciences, Beijing 100190, China
推荐引用方式
GB/T 7714
Xie JL,Shi XJ,Zhang J. Temporal Variation of Solar Coronal Rotation[J]. ASTROPHYSICAL JOURNAL,2017,841(1).
APA Xie JL,Shi XJ,&Zhang J.(2017).Temporal Variation of Solar Coronal Rotation.ASTROPHYSICAL JOURNAL,841(1).
MLA Xie JL,et al."Temporal Variation of Solar Coronal Rotation".ASTROPHYSICAL JOURNAL 841.1(2017).

入库方式: OAI收割

来源:云南天文台

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