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Can Small-scale Magnetic Fields Be the Major Cause for the Near-surface Effect of the Solar p-mode Frequencies?
Li Y(李焱)1,2,3,4; Zhang QS(张钱生)1,2,3; Wu T(吴涛)1,2,3; Su J(苏杰)1,2,3; Chen XH(陈兴浩)1,2; Lin GF(林桂芳)1,2; Guo JH(郭建恒)1,2,3,4; Liu JY(刘杰英)1,2
发表期刊ASTROPHYSICAL JOURNAL
2021-08
卷号916期号:2
DOI10.3847/1538-4357/ac0882
产权排序第1完成单位
收录类别SCI
摘要

Small-scale magnetic fields are not only the fundamental element of the solar magnetism but also closely related to the structure of the solar atmosphere. The observations have shown that there is a ubiquitous tangled small-scale magnetic field with a strength of 60-130 G in the canopy-forming layer of the quiet solar photosphere. On the other hand, the multidimensional MHD simulations show that the convective overshooting expels the magnetic field to form the magnetic canopies at a height of about 500 km in the upper photosphere. However, the distribution of such small-scale canopies in the solar photosphere cannot be rigorously constrained by either observations or numerical simulations. Based on stellar standard models, we identify that these magnetic canopies can act as a global magnetic arch splicing layer, and we find that the reflections of the solar p-mode oscillations at this magnetic arch splicing layer result in significant improvement on the discrepancy between the observed and calculated p-mode frequencies. The location of the magnetic arch splicing layer is determined at a height of about 630 km, and the inferred strength of the magnetic field is about 90 G. These features of the magnetic arch splicing layer derived independently in the present study are quantitatively in agreement with the presence of small-scale magnetic canopies such as those obtained by the observations and 3D MHD simulations.

资助项目National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11333006] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11973079] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11521303]
项目资助者National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11333006, 11973079, 11521303]
语种英语
学科领域天文学 ; 恒星与银河系 ; 恒星物理学
学科门类理学 ; 理学::天文学
文章类型Article
出版者IOP PUBLISHING LTD
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-637X
URL查看原文
WOS记录号WOS:000681050300001
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]OSCILLATION FREQUENCIES ; INTERNETWORK ; CONVECTION ; ATMOSPHERE ; SIMULATIONS ; PHOTOSPHERE ; CONNECTION ; EQUATION ; WAVES ; FLUX
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.ynao.ac.cn/handle/114a53/24515
专题恒星物理研究组
中国科学院天体结构与演化重点实验室
通讯作者Li Y(李焱)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China; ly@ynao.ac.cn;
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, People's Republic of China;
3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100012, People's Republic of China;
4.University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
第一作者单位中国科学院云南天文台
通讯作者单位中国科学院云南天文台
推荐引用方式
GB/T 7714
Li Y,Zhang QS,Wu T,et al. Can Small-scale Magnetic Fields Be the Major Cause for the Near-surface Effect of the Solar p-mode Frequencies?[J]. ASTROPHYSICAL JOURNAL,2021,916(2).
APA Li Y.,Zhang QS.,Wu T.,Su J.,Chen XH.,...&Liu JY.(2021).Can Small-scale Magnetic Fields Be the Major Cause for the Near-surface Effect of the Solar p-mode Frequencies?.ASTROPHYSICAL JOURNAL,916(2).
MLA Li Y,et al."Can Small-scale Magnetic Fields Be the Major Cause for the Near-surface Effect of the Solar p-mode Frequencies?".ASTROPHYSICAL JOURNAL 916.2(2021).
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