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| Format: | Preprint |
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2023
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| Online Access: | https://arxiv.org/abs/2311.14409 |
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| _version_ | 1866914736948379648 |
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| author | Li, Gaici Hu, Maokai Li, Wenxiong Yang, Yi Wang, Xiaofeng Yan, Shengyu Hu, Lei Zhang, Jujia Mao, Yiming Riise, Henrik Gao, Xing Sun, Tianrui Liu, Jialian Xiong, Dingrong Wang, Lifan Mo, Jun Iskandar, Abdusamatjan Xi, Gaobo Xiang, Danfeng Wang, Lingzhi Sun, Guoyou Zhang, Keming Chen, Jian Lin, Weili Guo, Fangzhou Liu, Qichun Cai, Guangyao Zhou, Wenjie Zhao, Jingyuan Chen, Jin Zheng, Xin Li, Keying Zhang, Mi Xu, Shijun Lyu, Xiaodong Castro-Tirado, A. J. Chufarin, Vasilii Potapov, Nikolay Ionov, Ivan Korotkiy, Stanislav Nazarov, Sergey Sokolovsky, Kirill Hamann, Norman Herman, Eliot |
| author_facet | Li, Gaici Hu, Maokai Li, Wenxiong Yang, Yi Wang, Xiaofeng Yan, Shengyu Hu, Lei Zhang, Jujia Mao, Yiming Riise, Henrik Gao, Xing Sun, Tianrui Liu, Jialian Xiong, Dingrong Wang, Lifan Mo, Jun Iskandar, Abdusamatjan Xi, Gaobo Xiang, Danfeng Wang, Lingzhi Sun, Guoyou Zhang, Keming Chen, Jian Lin, Weili Guo, Fangzhou Liu, Qichun Cai, Guangyao Zhou, Wenjie Zhao, Jingyuan Chen, Jin Zheng, Xin Li, Keying Zhang, Mi Xu, Shijun Lyu, Xiaodong Castro-Tirado, A. J. Chufarin, Vasilii Potapov, Nikolay Ionov, Ivan Korotkiy, Stanislav Nazarov, Sergey Sokolovsky, Kirill Hamann, Norman Herman, Eliot |
| contents | Shock breakout emission is light that arises when a shockwave, generated by core-collapse explosion of a massive star, passes through its outer envelope. Hitherto, the earliest detection of such a signal was at several hours after the explosion, though a few others had been reported. The temporal evolution of early light curves should reveal insights into the shock propagation, including explosion asymmetry and environment in the vicinity, but this has been hampered by the lack of multiwavelength observations. Here we report the instant multiband observations of a type II supernova (SN 2023ixf) in the galaxy M101 (at a distance of 6.85+/-0.15 Mpc), beginning at about 1.4 hours after the explosion. The exploding star was a red supergiant with a radius of about 440 solar radii. The light curves evolved rapidly, on timescales of 1-2 hours, and appeared unusually fainter and redder than predicted by models within the first few hours, which we attribute to an optically thick dust shell before it was disrupted by the shockwave. We infer that the breakout and perhaps the distribution of the surrounding dust were not spherically symmetric. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_14409 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | A Shock Flash Breaking Out of a Dusty Red Supergiant Li, Gaici Hu, Maokai Li, Wenxiong Yang, Yi Wang, Xiaofeng Yan, Shengyu Hu, Lei Zhang, Jujia Mao, Yiming Riise, Henrik Gao, Xing Sun, Tianrui Liu, Jialian Xiong, Dingrong Wang, Lifan Mo, Jun Iskandar, Abdusamatjan Xi, Gaobo Xiang, Danfeng Wang, Lingzhi Sun, Guoyou Zhang, Keming Chen, Jian Lin, Weili Guo, Fangzhou Liu, Qichun Cai, Guangyao Zhou, Wenjie Zhao, Jingyuan Chen, Jin Zheng, Xin Li, Keying Zhang, Mi Xu, Shijun Lyu, Xiaodong Castro-Tirado, A. J. Chufarin, Vasilii Potapov, Nikolay Ionov, Ivan Korotkiy, Stanislav Nazarov, Sergey Sokolovsky, Kirill Hamann, Norman Herman, Eliot High Energy Astrophysical Phenomena Solar and Stellar Astrophysics Shock breakout emission is light that arises when a shockwave, generated by core-collapse explosion of a massive star, passes through its outer envelope. Hitherto, the earliest detection of such a signal was at several hours after the explosion, though a few others had been reported. The temporal evolution of early light curves should reveal insights into the shock propagation, including explosion asymmetry and environment in the vicinity, but this has been hampered by the lack of multiwavelength observations. Here we report the instant multiband observations of a type II supernova (SN 2023ixf) in the galaxy M101 (at a distance of 6.85+/-0.15 Mpc), beginning at about 1.4 hours after the explosion. The exploding star was a red supergiant with a radius of about 440 solar radii. The light curves evolved rapidly, on timescales of 1-2 hours, and appeared unusually fainter and redder than predicted by models within the first few hours, which we attribute to an optically thick dust shell before it was disrupted by the shockwave. We infer that the breakout and perhaps the distribution of the surrounding dust were not spherically symmetric. |
| title | A Shock Flash Breaking Out of a Dusty Red Supergiant |
| topic | High Energy Astrophysical Phenomena Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2311.14409 |