Extreme Ultraviolet Wave and Quasi-periodic Pulsations during an eruptive M-class Flare
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| Format: | Preprint |
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2025
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| _version_ | 1866916960059523072 |
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| author | Li, Shuyue Zhang, Qingmin Ji, Haisheng Liu, Shengli Shi, Fanpeng Li, Dong |
| author_facet | Li, Shuyue Zhang, Qingmin Ji, Haisheng Liu, Shengli Shi, Fanpeng Li, Dong |
| contents | In this paper, we report multiwavelength and multipoint observations of the prominence eruption originating from active region 11163, which generated an M3.5 class flare and a coronal mass ejection (CME) on 2011 February 24. The prominence lifts off and propagates nonradially in the southeast direction. Using the revised cone model, we carry out three-dimensional reconstructions of the icecream-like prominence. The latitudinal inclination angle decreases from $\sim$60$\degr$ to $\sim$37$\degr$, indicating that the prominence tends to propagate more radially. The longitudinal inclination angle almost keeps constant (-6$\degr$). The highly inclined prominence eruption and the related CME drive an extreme ultraviolet (EUV) wave, which propagates southward at speeds of $\sim$381.60 km s$^{-1}$ and $\sim$398.59 km s$^{-1}$ observed in 193 Å and 304 Å, respectively. The M3.5 class flare presents quasi-periodic pulsations (QPPs) in soft X-ray, hard X-ray, EUV, and radio wavelengths with periods of 80$-$120 s. Cotemporary with the flare QPPs, a thin current sheet and multiple plasmoids are observed following the eruptive prominence. Combining with the appearance of drifting pulsation structure, the QPPs are most probably generated by quasi-periodic magnetic reconnection and particle accelerations as a result of plasmoids in the current sheet. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2509_17309 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Extreme Ultraviolet Wave and Quasi-periodic Pulsations during an eruptive M-class Flare Li, Shuyue Zhang, Qingmin Ji, Haisheng Liu, Shengli Shi, Fanpeng Li, Dong Solar and Stellar Astrophysics In this paper, we report multiwavelength and multipoint observations of the prominence eruption originating from active region 11163, which generated an M3.5 class flare and a coronal mass ejection (CME) on 2011 February 24. The prominence lifts off and propagates nonradially in the southeast direction. Using the revised cone model, we carry out three-dimensional reconstructions of the icecream-like prominence. The latitudinal inclination angle decreases from $\sim$60$\degr$ to $\sim$37$\degr$, indicating that the prominence tends to propagate more radially. The longitudinal inclination angle almost keeps constant (-6$\degr$). The highly inclined prominence eruption and the related CME drive an extreme ultraviolet (EUV) wave, which propagates southward at speeds of $\sim$381.60 km s$^{-1}$ and $\sim$398.59 km s$^{-1}$ observed in 193 Å and 304 Å, respectively. The M3.5 class flare presents quasi-periodic pulsations (QPPs) in soft X-ray, hard X-ray, EUV, and radio wavelengths with periods of 80$-$120 s. Cotemporary with the flare QPPs, a thin current sheet and multiple plasmoids are observed following the eruptive prominence. Combining with the appearance of drifting pulsation structure, the QPPs are most probably generated by quasi-periodic magnetic reconnection and particle accelerations as a result of plasmoids in the current sheet. |
| title | Extreme Ultraviolet Wave and Quasi-periodic Pulsations during an eruptive M-class Flare |
| topic | Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2509.17309 |