Rotational Characteristics of the Solar Transition Region Using SDO/AIA 304 Å Images
To date, the rotational characteristics of the solar transition region remain unclear. In this work, by applying the flux modulation method to the images derived from the Solar Dynamics Observatory/Atmospheric Imaging Assembly between 2011 and 2022 at 304 Å wavelength, we have studied the rotation o...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/ace623 |
| _version_ | 1797730280623046656 |
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| author | Qian-Rui Wu Sheng Zheng Shu-Guang Zeng Miao Wan Xiang-Yun Zeng Lin-Hua Deng Yao Huang |
| author_facet | Qian-Rui Wu Sheng Zheng Shu-Guang Zeng Miao Wan Xiang-Yun Zeng Lin-Hua Deng Yao Huang |
| author_sort | Qian-Rui Wu |
| collection | DOAJ |
| description | To date, the rotational characteristics of the solar transition region remain unclear. In this work, by applying the flux modulation method to the images derived from the Solar Dynamics Observatory/Atmospheric Imaging Assembly between 2011 and 2022 at 304 Å wavelength, we have studied the rotation of the solar transition region, and the results obtained are as follows. The solar transition region rotates differentially, while, from the perspective of the entire time interval, the rotation coefficients A and B are 14.39 (±0.08) and −1.61 (±0.15), respectively, and we find no prominent asymmetry in the average rotation rate of the northern and southern hemispheres. The solar transition region rotates fastest during the solar cycle maximum, and the average rotation rate follows the overall trend of solar activity. Both the equatorial rotation rate (represented by coefficient A ) and the latitudinal gradient (represented by coefficient B ) of the solar transition region are smaller than that of the solar chromosphere and the corona, indicating the solar transition region rotates more slowly and more rigidly than the other two layers, and we speculate that the solar chromosphere and corona seem to restrain the rotation of the solar transition region at the same time. |
| first_indexed | 2024-03-12T11:42:00Z |
| format | Article |
| id | doaj.art-c3f956e560b845afa97e3f92da33cf37 |
| institution | Directory Open Access Journal |
| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-03-12T11:42:00Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj.art-c3f956e560b845afa97e3f92da33cf372023-08-31T14:45:30ZengIOP PublishingThe Astrophysical Journal1538-43572023-01-0195412010.3847/1538-4357/ace623Rotational Characteristics of the Solar Transition Region Using SDO/AIA 304 Å ImagesQian-Rui Wu0Sheng Zheng1Shu-Guang Zeng2Miao Wan3Xiang-Yun Zeng4https://orcid.org/0000-0002-8049-202XLin-Hua Deng5Yao Huang6Center for Astronomy and Space Sciences, China Three Gorges University , Yichang 443002, People’s Republic of China ; zengshuguang19@163.com; College of Science, China Three Gorges University , Yichang 443002, People’s Republic of China; Yunnan Key Laboratory of the Solar Physics and Space Science , Kunming 650216, People’s Republic of ChinaCenter for Astronomy and Space Sciences, China Three Gorges University , Yichang 443002, People’s Republic of China ; zengshuguang19@163.com; College of Science, China Three Gorges University , Yichang 443002, People’s Republic of ChinaCenter for Astronomy and Space Sciences, China Three Gorges University , Yichang 443002, People’s Republic of China ; zengshuguang19@163.com; College of Science, China Three Gorges University , Yichang 443002, People’s Republic of ChinaYunnan Observatories, Chinese Academy of Science , Kunming 650216, People’s Republic of China ; lhdeng@ynao.ac.cnCenter for Astronomy and Space Sciences, China Three Gorges University , Yichang 443002, People’s Republic of China ; zengshuguang19@163.com; College of Science, China Three Gorges University , Yichang 443002, People’s Republic of ChinaYunnan Observatories, Chinese Academy of Science , Kunming 650216, People’s Republic of China ; lhdeng@ynao.ac.cnCenter for Astronomy and Space Sciences, China Three Gorges University , Yichang 443002, People’s Republic of China ; zengshuguang19@163.com; College of Science, China Three Gorges University , Yichang 443002, People’s Republic of ChinaTo date, the rotational characteristics of the solar transition region remain unclear. In this work, by applying the flux modulation method to the images derived from the Solar Dynamics Observatory/Atmospheric Imaging Assembly between 2011 and 2022 at 304 Å wavelength, we have studied the rotation of the solar transition region, and the results obtained are as follows. The solar transition region rotates differentially, while, from the perspective of the entire time interval, the rotation coefficients A and B are 14.39 (±0.08) and −1.61 (±0.15), respectively, and we find no prominent asymmetry in the average rotation rate of the northern and southern hemispheres. The solar transition region rotates fastest during the solar cycle maximum, and the average rotation rate follows the overall trend of solar activity. Both the equatorial rotation rate (represented by coefficient A ) and the latitudinal gradient (represented by coefficient B ) of the solar transition region are smaller than that of the solar chromosphere and the corona, indicating the solar transition region rotates more slowly and more rigidly than the other two layers, and we speculate that the solar chromosphere and corona seem to restrain the rotation of the solar transition region at the same time.https://doi.org/10.3847/1538-4357/ace623Solar transition regionSolar activitySolar cycleSolar differential rotationSolar rotation |
| spellingShingle | Qian-Rui Wu Sheng Zheng Shu-Guang Zeng Miao Wan Xiang-Yun Zeng Lin-Hua Deng Yao Huang Rotational Characteristics of the Solar Transition Region Using SDO/AIA 304 Å Images The Astrophysical Journal Solar transition region Solar activity Solar cycle Solar differential rotation Solar rotation |
| title | Rotational Characteristics of the Solar Transition Region Using SDO/AIA 304 Å Images |
| title_full | Rotational Characteristics of the Solar Transition Region Using SDO/AIA 304 Å Images |
| title_fullStr | Rotational Characteristics of the Solar Transition Region Using SDO/AIA 304 Å Images |
| title_full_unstemmed | Rotational Characteristics of the Solar Transition Region Using SDO/AIA 304 Å Images |
| title_short | Rotational Characteristics of the Solar Transition Region Using SDO/AIA 304 Å Images |
| title_sort | rotational characteristics of the solar transition region using sdo aia 304 a images |
| topic | Solar transition region Solar activity Solar cycle Solar differential rotation Solar rotation |
| url | https://doi.org/10.3847/1538-4357/ace623 |
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