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![]() ![]() ![]() |
刊名 | ASTROPHYSICAL JOURNAL
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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 |
DOI | 10.3847/1538-4357/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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