SOLAR CYCLE VARIATION OF THE INTER-NETWORK MAGNETIC FIELD
文献类型：期刊论文
| 作者 | Jin, Chunlan ; Wang, Jingxiu
|
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2015-06-20 |
| 卷号 | 806期号:2 |
| 关键词 | Sun: magnetic fields Sun: photosphere sunspots |
| 英文摘要 | The solar inter-network magnetic field is the weakest component of solar magnetism, but it contributes most of the solar surface magnetic flux. The study of its origin has been constrained by the inadequate tempospatial resolution and sensitivity of polarization observations. With dramatic advances in spatial resolution and detecting sensitivity, the solar spectropolarimetry provided by the Solar Optical Telescope on board Hinode in an interval from the solar minimum to maximum of cycle 24 opens an unprecedented opportunity to study the cyclic behavior of the solar inter-network magnetic field. More than 1000 Hinode magnetograms observed from 2007 January to 2014 August are selected in the study. It has been found that there is a very slight correlation between sunspot number and magnetic field at the inter-network flux spectrum. From solar minimum to maximum of cycle 24, the flux density of the solar inter-network field is invariant, at 10 +/- 1 G. The observations suggest that the inter-network magnetic field does not arise from flux diffusion or flux recycling of solar active regions, thereby indicating the existence of a local small-scale dynamo. Combining the full-disk magnetograms observed by the Solar and Heliospheric Observatory/Michelson Doppler Imager and the Solar Dynamics Observatory/Helioseismic and Magnetic Imager in the same period, we find that the area ratio of the inter-network region to the full disk of the Sun apparently decreases from solar minimum to maximum but always exceeds 60%, even in the phase of solar maximum. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000357129500029 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/5651]  |
| 专题 | 国家天文台_太阳物理研究部 |
| 作者单位 | Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jin, Chunlan,Wang, Jingxiu. SOLAR CYCLE VARIATION OF THE INTER-NETWORK MAGNETIC FIELD[J]. ASTROPHYSICAL JOURNAL,2015,806(2). |
| APA | Jin, Chunlan,&Wang, Jingxiu.(2015).SOLAR CYCLE VARIATION OF THE INTER-NETWORK MAGNETIC FIELD.ASTROPHYSICAL JOURNAL,806(2). |
| MLA | Jin, Chunlan,et al."SOLAR CYCLE VARIATION OF THE INTER-NETWORK MAGNETIC FIELD".ASTROPHYSICAL JOURNAL 806.2(2015). |
入库方式： OAI收割
来源：国家天文台
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