Thread Displacement and Intensity Oscillations in a Quiescent Prominence
In this paper, we investigate the thread displacement and intensity oscillations in a quiescent prominence observed by New Vacuum Solar Telescope at the H α line center on 2019 October 31. Each individual thread is traced by the local maximum intensity among its width at various times. In total, 35...
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| Language: | English |
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IOP Publishing
2024-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/ad813c |
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| author | Yuxiang Song Zongjun Ning Dong Li Fanpeng Shi Jun Xu Yuzhi Yang |
| author_facet | Yuxiang Song Zongjun Ning Dong Li Fanpeng Shi Jun Xu Yuzhi Yang |
| author_sort | Yuxiang Song |
| collection | DOAJ |
| description | In this paper, we investigate the thread displacement and intensity oscillations in a quiescent prominence observed by New Vacuum Solar Telescope at the H α line center on 2019 October 31. Each individual thread is traced by the local maximum intensity among its width at various times. In total, 35 threads are detected at six heights parallel to the solar surface. We find 29/35 threads exhibiting the displacement oscillation. A sinusoidal function is used to fit them, and a mean period of 26 minutes is identified. By slicing the same thread at different positions, we find that the oscillation of the thread is very likely a standing wave, but it could also be a long-wavelength propagating wave. After integrating the intensity along the thread width, we also find 8/35 threads presenting their intensity oscillation with a mean period of 7.7 minutes. In total, 7/35 threads exhibit both the displacement and the intensity oscillations. |
| format | Article |
| id | doaj-art-ee79b5dadfdf48e699b4a014beb69d6d |
| institution | OA Journals |
| issn | 1538-4357 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj-art-ee79b5dadfdf48e699b4a014beb69d6d2025-08-20T02:13:06ZengIOP PublishingThe Astrophysical Journal1538-43572024-01-01975228010.3847/1538-4357/ad813cThread Displacement and Intensity Oscillations in a Quiescent ProminenceYuxiang Song0https://orcid.org/0009-0000-8877-6273Zongjun Ning1https://orcid.org/0000-0002-9893-4711Dong Li2https://orcid.org/0000-0002-4538-9350Fanpeng Shi3https://orcid.org/0000-0003-0779-3712Jun Xu4https://orcid.org/0009-0003-2007-7865Yuzhi Yang5https://orcid.org/0009-0005-5397-3329Key Laboratory of Dark Matter and Space Science, Purple Mountain Observatory , Chinese Academy of Sciences, Nanjing 210033, People's Republic of China ; xysong@pmo.ac.cn; School of Astronomy and Space Science, University of Science and Technology of China , Hefei 230026, People's Republic of ChinaKey Laboratory of Dark Matter and Space Science, Purple Mountain Observatory , Chinese Academy of Sciences, Nanjing 210033, People's Republic of China ; xysong@pmo.ac.cn; School of Astronomy and Space Science, University of Science and Technology of China , Hefei 230026, People's Republic of ChinaKey Laboratory of Dark Matter and Space Science, Purple Mountain Observatory , Chinese Academy of Sciences, Nanjing 210033, People's Republic of China ; xysong@pmo.ac.cn; School of Astronomy and Space Science, University of Science and Technology of China , Hefei 230026, People's Republic of ChinaKey Laboratory of Dark Matter and Space Science, Purple Mountain Observatory , Chinese Academy of Sciences, Nanjing 210033, People's Republic of China ; xysong@pmo.ac.cn; School of Astronomy and Space Science, University of Science and Technology of China , Hefei 230026, People's Republic of ChinaKey Laboratory of Dark Matter and Space Science, Purple Mountain Observatory , Chinese Academy of Sciences, Nanjing 210033, People's Republic of China ; xysong@pmo.ac.cn; School of Astronomy and Space Science, University of Science and Technology of China , Hefei 230026, People's Republic of ChinaKey Laboratory of Dark Matter and Space Science, Purple Mountain Observatory , Chinese Academy of Sciences, Nanjing 210033, People's Republic of China ; xysong@pmo.ac.cn; School of Astronomy and Space Science, University of Science and Technology of China , Hefei 230026, People's Republic of ChinaIn this paper, we investigate the thread displacement and intensity oscillations in a quiescent prominence observed by New Vacuum Solar Telescope at the H α line center on 2019 October 31. Each individual thread is traced by the local maximum intensity among its width at various times. In total, 35 threads are detected at six heights parallel to the solar surface. We find 29/35 threads exhibiting the displacement oscillation. A sinusoidal function is used to fit them, and a mean period of 26 minutes is identified. By slicing the same thread at different positions, we find that the oscillation of the thread is very likely a standing wave, but it could also be a long-wavelength propagating wave. After integrating the intensity along the thread width, we also find 8/35 threads presenting their intensity oscillation with a mean period of 7.7 minutes. In total, 7/35 threads exhibit both the displacement and the intensity oscillations.https://doi.org/10.3847/1538-4357/ad813cQuiet solar coronaQuiescent solar prominenceSolar oscillationsMagnetohydrodynamics |
| spellingShingle | Yuxiang Song Zongjun Ning Dong Li Fanpeng Shi Jun Xu Yuzhi Yang Thread Displacement and Intensity Oscillations in a Quiescent Prominence The Astrophysical Journal Quiet solar corona Quiescent solar prominence Solar oscillations Magnetohydrodynamics |
| title | Thread Displacement and Intensity Oscillations in a Quiescent Prominence |
| title_full | Thread Displacement and Intensity Oscillations in a Quiescent Prominence |
| title_fullStr | Thread Displacement and Intensity Oscillations in a Quiescent Prominence |
| title_full_unstemmed | Thread Displacement and Intensity Oscillations in a Quiescent Prominence |
| title_short | Thread Displacement and Intensity Oscillations in a Quiescent Prominence |
| title_sort | thread displacement and intensity oscillations in a quiescent prominence |
| topic | Quiet solar corona Quiescent solar prominence Solar oscillations Magnetohydrodynamics |
| url | https://doi.org/10.3847/1538-4357/ad813c |
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