Prominent Photospheric Downflows on Magnetic Neutral Line in a Delta-Type Sunspot
文献类型：期刊论文
| 作者 | Takizawa, K.1,2; Kitai, R.1,2; Zhang, Y.1,2,3 |
| 刊名 | SOLAR PHYSICS
 |
| 出版日期 | 2012-12-01 |
| 卷号 | 281期号:2页码:599-609 |
| 关键词 | Active regions Magnetic fields Photosphere |
| 英文摘要 | It is known that delta-type sunspot groups have a high flare productivity and produce strong flares. In particular, beta gamma delta type sunspots are the most active type of all. A beta gamma delta active region NOAA 9957 with frequent flux cancellations but without any marked flare activity during its decay phase was studied in this work. Using SOHO/MDI Dopplergrams and magnetograms, we detected continuous prominent downflow motions of 1500 -aEuro parts per thousand 1700 m s(-1) for several hours on the magnetic neutral line in this region. In the downflow region, penumbral structures were observed to decay. We will interpret and discuss the phenomenon as a case of submergence of the magnetic flux. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000310974000004 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6341]  |
| 专题 | 国家天文台_射电天文研究部 |
| 作者单位 | 1.Kyoto Univ, Kwasan Observ, Yamashina Ku, Kyoto 6078471, Japan 2.Kyoto Univ, Hida Observ, Yamashina Ku, Kyoto 6078471, Japan 3.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Takizawa, K.,Kitai, R.,Zhang, Y.. Prominent Photospheric Downflows on Magnetic Neutral Line in a Delta-Type Sunspot[J]. SOLAR PHYSICS,2012,281(2):599-609. |
| APA | Takizawa, K.,Kitai, R.,&Zhang, Y..(2012).Prominent Photospheric Downflows on Magnetic Neutral Line in a Delta-Type Sunspot.SOLAR PHYSICS,281(2),599-609. |
| MLA | Takizawa, K.,et al."Prominent Photospheric Downflows on Magnetic Neutral Line in a Delta-Type Sunspot".SOLAR PHYSICS 281.2(2012):599-609. |
入库方式： OAI收割
来源：国家天文台
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