Multi-scale analysis of coronal Fe XIV emission: The role of mid-range periodicities in the Sun-heliosphere connection
文献类型：期刊论文
| 作者 | Deng LH(邓林华)1,2,3,4 ; Li, B3; Xiang YY(向永源)1,4; Dun GT(敦广涛)1
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| 刊名 | JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS
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| 出版日期 | 2015-01 |
| 卷号 | 122页码:18-25 |
| 关键词 | Sun Corona-oscillations-methods Data analysis |
| ISSN号 | 1364-6826 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Deng, LH (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | Two relatively modern analysis techniques, including the empirical mode decomposition and Morlet wavelet transform, are combined to investigate the short- and mid-term periodicities of daily coronal index from 1 January 1939 to 31 December 2008. Apart from the well-known periodicities of annualoscillation variation, 11-year Schwabe cycle, 17-year full-disk activity cycle and 22-year magnetic cycle, the combined procedure reveals a variety of mid-term quasi-periodicities (MTQPs) in this solar-activity indicator, especially the periodicities near the 1.3 and 1.7 years. The prominent results show the followings: (1) the synodic rotation periodicities of 26 and 29 days correspond to the two principal components (the fast and slow types) of differential rotation in the solar corona; (2) the Rieger-type periodicity near 150 days is not found in time series of coronal index, which may be due to the intermittent character of its quasi-periodic pattern; (3) the MTQPs with a shorter periodicity around 13 years and a longer one around 1.7 years indeed exist in the solar coronal region. Our analysis results suggest that the coronal dynamics should be a connecting agent among the oscillations in the tachocline layer (Howe et al., 2000), in the lower atmospheric layers (Krivova and Solanki, 2002) and in the interplanetary space (Mursula and Vilppola, 2004). (C) 2014 Elsevier Ltd. All rights reserved. |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | EMPIRICAL MODE DECOMPOSITION ; INTERMEDIATE-TERM PERIODICITIES ; SOLAR-FLARE OCCURRENCE ; COSMIC-RAY INTENSITY ; MAGNETIC-FIELD ; GEOMAGNETIC-ACTIVITY ; CONVECTION ZONE ; GREEN CORONA ; MIDTERM PERIODICITIES ; TEMPORAL VARIATIONS |
| 收录类别 | SCI ; EI |
| 原文出处 | http://www.sciencedirect.com/science/article/pii/S1364682614002442 |
| 语种 | 英语 |
| WOS记录号 | WOS:000348627300003 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/4717]  |
| 专题 | 云南天文台_抚仙湖太阳观测站 |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, PR China 2.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, PR China 3.Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, School of Space Science and Physics, Shandong University at Weihai, Weihai 264209, PR China 4.University of Chinese Academy of Sciences, Beijing 100049, PR China |
| 推荐引用方式 GB/T 7714 | Deng LH,Li, B,Xiang YY,et al. Multi-scale analysis of coronal Fe XIV emission: The role of mid-range periodicities in the Sun-heliosphere connection[J]. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS,2015,122:18-25. |
| APA | Deng LH,Li, B,Xiang YY,&Dun GT.(2015).Multi-scale analysis of coronal Fe XIV emission: The role of mid-range periodicities in the Sun-heliosphere connection.JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS,122,18-25. |
| MLA | Deng LH,et al."Multi-scale analysis of coronal Fe XIV emission: The role of mid-range periodicities in the Sun-heliosphere connection".JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS 122(2015):18-25. |
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来源：云南天文台
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