Magnetic Field Characteristics of Moving Magnetic Features during the Sunspot Decay from the Whole Sunspot to Pore
文献类型：期刊论文
| 作者 | Peng, Yang1; Xue, Zhike2,4; Jin, Chunlan5; Liu, Jihong6; Webb, Dean3 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2025-09-20 |
| 卷号 | 991期号:1页码:10 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/adfccf |
| 通讯作者 | Xue, Zhike(zkxue@ynao.ac.cn) |
| 英文摘要 | To understand the relationship between moving magnetic features (MMFs) and the decay of the sunspot, we studied the complete decays of four alpha-type sunspots based on data from the Solar Dynamics Observatory/Helioseismic and Magnetic Imager, focusing on the magnetic properties of same-polarity MMFs at the moment they detach from the sunspots. The main results are as follows: (1) The area and horizontal velocity of MMFs mainly range from 0.4 to 2 MSH and 0.2 to 1.7 km s(-1), with typical values of 0.65 MSH and 0.6 km s(-1), respectively. The dominant ranges for B, Bt, Bz, and gamma are 200-400 G, 75-350 G, 153-297 G, and 20 degrees-60 degrees, respectively. (2) Comparing the pre-pore (the stage before the sunspot transforms into the pore) and pore (after the transformation) stages, the area, horizontal velocity, and Bz show similar distribution ranges, while the mean values and ranges of B, Bt, and gamma decrease significantly. (3) In the pre-pore stage, MMFs predominantly manifest as horizontal MMFs (MMFs that have a horizontal magnetic field (45 degrees < gamma < 90 degrees)), whereas in the pore stage, most of them are observed as vertical MMFs (MMFs that have a vertical magnetic field (0 degrees < gamma <= 45 degrees)). These findings provide observational evidence for the turbulent erosion model of the sunspot decay; the mean vertical magnetic field may be an important parameter for the detachment of MMFs from the sunspots. |
| WOS关键词 | FEATURE PAIRS ; FLOW-FIELDS ; FLUX ; MECHANISM ; EVOLUTION ; ORIGIN ; SENSE ; MASS ; LAW |
| 资助项目 | (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic) divided by Natural Science Foundation of Yunnan Province (Yunnan Natural Science Foundation)https://doi.org/10.13039/501100005273[QN2025086] ; Science Research Project of Hebei Education Department[XDB0560000] ; Strategic Priority Research Program of the Chinese Academy of Sciences[202201AT070194] ; Yunnan Science Foundation of China[202205AG070009] ; Yunnan Key Laboratory of Solar Physics and Space Science |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001576125300001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic) divided by Natural Science Foundation of Yunnan Province (Yunnan Natural Science Foundation)https://doi.org/10.13039/501100005273 ; Science Research Project of Hebei Education Department ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Yunnan Science Foundation of China ; Yunnan Key Laboratory of Solar Physics and Space Science |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/28668]  |
| 专题 | 云南天文台_抚仙湖太阳观测站 |
| 通讯作者 | Xue, Zhike |
| 作者单位 | 1.Hebei Univ Sci & Technol, Sch Econ & Management, Shijiazhuang 050018, Peoples R China 2.Yunnan Key Lab Solar Phys & Space Sci, Kunming 650216, Peoples R China 3.Federat Univ, Inst Innovat Sci & Sustainabil, Mt Helen, Vic 3350, Australia 4.Chinese Acad Sci, Yunnan Observ, Kunming 650216, Peoples R China 5.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China 6.Shijiazhuang Univ, Sch Sci, Shijiazhuang 050035, Peoples R China |
| 推荐引用方式 GB/T 7714 | Peng, Yang,Xue, Zhike,Jin, Chunlan,et al. Magnetic Field Characteristics of Moving Magnetic Features during the Sunspot Decay from the Whole Sunspot to Pore[J]. ASTROPHYSICAL JOURNAL,2025,991(1):10. |
| APA | Peng, Yang,Xue, Zhike,Jin, Chunlan,Liu, Jihong,&Webb, Dean.(2025).Magnetic Field Characteristics of Moving Magnetic Features during the Sunspot Decay from the Whole Sunspot to Pore.ASTROPHYSICAL JOURNAL,991(1),10. |
| MLA | Peng, Yang,et al."Magnetic Field Characteristics of Moving Magnetic Features during the Sunspot Decay from the Whole Sunspot to Pore".ASTROPHYSICAL JOURNAL 991.1(2025):10. |
入库方式： OAI收割
来源：云南天文台
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