| Probing the Shock Breakout Signal of SN 2024ggi from the Transformation of Early Flash Spectroscopy | |
Zhang JJ(张居甲)1,2,3 ; Dessart, Luc4; Wang, Xiaofeng5; Zhai Q(翟倩)1,3; Yang, Yi5,6; Li LP(李丽萍)1,2,3; Lin H(林含)1,2,3; Valerin, Giorgio7; Cai YZ(蔡永志)1,2,3; Guo, Zhen8,9,10; Wang, Lingzhi11; Zhao ZY(赵泽毅)1,2,3; Wang ZY(王振宇)1,2,3; Yan, Shengyu5
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| 发表期刊 | ASTROPHYSICAL JOURNAL LETTERS
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| 2024-07-01 | |
| 卷号 | 970期号:1 |
| DOI | 10.3847/2041-8213/ad5da4 |
| 产权排序 | 第1完成单位 |
| 收录类别 | SCI |
| 摘要 | We present early-time, hour-to-day cadence spectroscopy of the nearby Type II supernova (SN II) 2024ggi, which was discovered at a phase when the SN shock had just emerged from the red supergiant (RSG) progenitor star. Over the first few days after the first light, SN 2024ggi exhibited prominent narrow emission lines formed through intense and persistent photoionization of the nearby circumstellar material (CSM). In the first 63 hr, spectral lines of He, C, N, and O revealed a rapid rise in ionization as a result of the progressive sweeping up of the CSM by the shock. The duration of the IIn-like spectra indicates a dense and relatively confined CSM distribution extending up to similar to 4 x 1014 cm. Spectral modeling reveals that a CSM mass-loss rate at this region exceeding 5 x 10-3 M circle dot yr-1 is required to reproduce low-ionization emissions, which dramatically exceeds that of an RSG. Analyzing the H alpha emission shift implies the velocity of the unshocked outer CSM to be between 20 and 40 km s-1, matching the typical wind velocity of an RSG. The differences between the inner and outer layers of the CSM and an RSG progenitor highlight a complex mass-loss history before the explosion of SN 2024ggi. |
| 资助项目 | National Key R&D Program of China[2021YFA1600404]; National Natural Science Foundation of China[12173082]; China Manned Space Project[CMS-CSST-2021-A12]; Yunnan Fundamental Research Projects[202201AT070069]; Yunnan Fundamental Research Projects[202401BC070007]; Yunnan Fundamental Research Projects[202401AU070063]; Top-notch Young Talents Program of Yunnan Province; Light of West China Program provided by the Chinese Academy of Sciences; International Centre of Supernovae, and Yunnan Key Laboratory[202302AN360001]; National Natural Science Foundation of China (NSFC)[12288102]; National Natural Science Foundation of China (NSFC)[1203300]; National Natural Science Foundation of China (NSFC)[12303054]; ANID FONDECYT Postdoctoral[3220029]; ANID, Millennium Science Initiative[AIM23-0001]; Chinese Academy of Sciences (CAS); CAS South America Center for Astronomy (CASSACA) in Santiago, Chile |
| 项目资助者 | National Key R&D Program of China[2021YFA1600404] ; National Natural Science Foundation of China[12173082] ; China Manned Space Project[CMS-CSST-2021-A12] ; Yunnan Fundamental Research Projects[202201AT070069, 202401BC070007, 202401AU070063] ; Top-notch Young Talents Program of Yunnan Province ; Light of West China Program provided by the Chinese Academy of Sciences ; International Centre of Supernovae, and Yunnan Key Laboratory[202302AN360001] ; National Natural Science Foundation of China (NSFC)[12288102, 1203300, 12303054] ; ANID FONDECYT Postdoctoral[3220029] ; ANID, Millennium Science Initiative[AIM23-0001] ; Chinese Academy of Sciences (CAS) ; CAS South America Center for Astronomy (CASSACA) in Santiago, Chile |
| 语种 | 英语 |
| 学科领域 | 天文学 ; 恒星与银河系 |
| 文章类型 | Article |
| 出版者 | IOP Publishing Ltd |
| 出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
| ISSN | 2041-8205 |
| URL | 查看原文 |
| WOS记录号 | WOS:001272151800001 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | CIRCUMSTELLAR MATERIAL ; DISTANCE ; EMISSION ; ASTROPY ; PROGENITOR ; SPECTRA ; PACKAGE ; PROJECT ; 2010JL ; 1999EM |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/27496 |
| 专题 | 南方基地 中国科学院天体结构与演化重点实验室 |
| 作者单位 | 1.Yunnan Observatories (YNAO), Chinese Academy of Sciences (CAS), Kunming, 650216, People's Republic of China; [email protected]; 2.International Centre of Supernovae, Yunnan Key Laboratory, Kunming 650216, People's Republic of China; 3.Key Laboratory for the Structure and Evolution of Celestial Objects, CAS, Kunming, 650216, People's Republic of China; 4.Institut d'Astrophysique de Paris, CNRS-Sorbonne Université, 98 bis boulevard Arago, F-75014 Paris, France; 5.Physics Department, Tsinghua University, Beijing, 100084, People's Republic of China; 6.Department of Astronomy, University of California, Berkeley, CA 94720-3411, USA; 7.INAF-Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, 35122 Padova, Italy; 8.Instituto de Física y Astronomía, Universidad de Valparaíso, ave. Gran Bretaña, 1111, Casilla 5030, Valparaíso, Chile; 9.Centre for Astrophysics Research, University of Hertfordshire, Hatfield AL10 9AB, UK; 10.Millennium Institute of Astrophysics, Nuncio Monseñor Sotero Sanz 100, Of. 104, Providencia, Santiago, Chile; 11.Chinese Academy of Sciences South America Center for Astronomy (CASSACA), National Astronomical Observatories, CAS, Beijing, People's Republic of China |
| 第一作者单位 | 中国科学院云南天文台 |
| 推荐引用方式 GB/T 7714 | Zhang JJ,Dessart, Luc,Wang, Xiaofeng,et al. Probing the Shock Breakout Signal of SN 2024ggi from the Transformation of Early Flash Spectroscopy[J]. ASTROPHYSICAL JOURNAL LETTERS,2024,970(1). |
| APA | 张居甲.,Dessart, Luc.,Wang, Xiaofeng.,翟倩.,Yang, Yi.,...&Yan, Shengyu.(2024).Probing the Shock Breakout Signal of SN 2024ggi from the Transformation of Early Flash Spectroscopy.ASTROPHYSICAL JOURNAL LETTERS,970(1). |
| MLA | 张居甲,et al."Probing the Shock Breakout Signal of SN 2024ggi from the Transformation of Early Flash Spectroscopy".ASTROPHYSICAL JOURNAL LETTERS 970.1(2024). |
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| Probing the Shock Br（1787KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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