KMS of Xinjiang Astronomical Observatory, CAS
| Magneto-acoustic oscillations observed in a solar plage region | |
Ji, Haisheng1,2; Hashim, Parida2,3; Hong, Zhenxiang2; Xu, Zhe2; Shen, Jinhua3 ; Ji, Kaifan4; Cao, Wenda5
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| 2021-08-01 | |
| Source Publication | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| ISSN | 1674-4527 |
| Volume | 21Issue:7Pages:179 |
| Contribution Rank | 3 |
| Abstract | We gave an extensive study for the quasi-periodic perturbations on the time profiles of the line of sight (LOS) magnetic field in 10 x 10 sub-areas in a solar plage region (corresponds to a facula on the photosphere). The perturbations are found to be associated with the enhancement of He I 10830 angstrom absorption in a moss region, which is connected to loops with million-degree plasma. FFT analysis to the perturbations gives a kind of spectrum similar to that of Doppler velocity: a number of discrete periods around 5 minutes. The amplitudes of the magnetic perturbations are found to be proportional to magnetic field strength over these sub-areas. In addition, magnetic perturbations lag behind a quarter of the cycle in the phase with respect to the p-mode Doppler velocity. We show that the relationships can be well explained with an MHD solution for the magneto-acoustic oscillations in high-beta plasma. Observational analysis also shows that, for the two regions with the stronger and weaker magnetic field, the perturbations are always anti-phased. All findings show that the magnetic perturbations are actually magneto-acoustic oscillations on the solar surface, the photosphere, powered by p-mode oscillations. The findings may provide a new diagnostic tool for exploring the relationship between magneto-acoustic oscillations and the heating of the solar upper atmosphere, as well as their role in helioseismology. |
| Keyword | Sun photosphere Sun magnetic field Sun helioseismology |
| DOI | 10.1088/1674-4527/21/7/179 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | P-MODES ; MAGNETIC-FIELD ; MAGNETOHYDRODYNAMIC WAVES ; TRANSITION-REGION ; ABSORPTION ; FLUX ; PROPAGATION ; PHOTOSPHERE ; TELESCOPE ; FLUCTUATIONS |
| Funding Project | National Natural Science Foundation of China[11790302] ; National Natural Science Foundation of China[11729301] ; National Natural Science Foundation of China[11773061] ; National Natural Science Foundation of China[11773072] ; National Natural Science Foundation of China[11873027] ; NJIT ; US NSF[AGS-1821294] ; Korea Astronomy and Space Science Institute ; Seoul National University ; KLSA-CAS ; Operation, Maintenance and Upgrading Fund of CAS ; [2017XBQNXZ-A-007] ; [AFOSR-FA9550-19-1-0040] ; [NASA-80NSSC20K0025] |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000691269600001 |
| Publisher | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| Funding Organization | National Natural Science Foundation of China ; NJIT ; US NSF ; Korea Astronomy and Space Science Institute ; Seoul National University ; KLSA-CAS ; Operation, Maintenance and Upgrading Fund of CAS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/4258 |
| Collection | 中国科学院新疆天文台 |
| Corresponding Author | Shen, Jinhua |
| Affiliation | 1.Univ Chinese Acad Sci, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Purple Mt Observ, DMSA, Nanjing 210023, Peoples R China 3.Chinese Acad Sci, Xinjiang Astron Observ, Ununqi 830011, Peoples R China 4.Chinese Acad Sci, Yunnan Observ, Kunming 650216, Yunnan, Peoples R China 5.Big Bear Solar Observ, 40386 North Shore Lane, Big Bear City, CA 92231 USA |
| Recommended Citation GB/T 7714 | Ji, Haisheng,Hashim, Parida,Hong, Zhenxiang,et al. Magneto-acoustic oscillations observed in a solar plage region[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2021,21(7):179. |
| APA | Ji, Haisheng.,Hashim, Parida.,Hong, Zhenxiang.,Xu, Zhe.,Shen, Jinhua.,...&Cao, Wenda.(2021).Magneto-acoustic oscillations observed in a solar plage region.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,21(7),179. |
| MLA | Ji, Haisheng,et al."Magneto-acoustic oscillations observed in a solar plage region".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 21.7(2021):179. |
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| File Name/Size | DocType | Version | Access | License | ||
| Ji-2021-Magneto-acou（662KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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