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Probing the Shock Breakout Signal of SN 2024ggi from the Transformation of Early Flash Spectroscopy

文献类型：期刊论文

作者Zhang JJ(张居甲)9,10,11; Dessart, Luc8; Wang, Xiaofeng7; Zhai Q(翟倩)9,11; Yang, Yi6,7; Li LP(李丽萍)9,10,11; Lin H(林含)9,10,11; Valerin, Giorgio5; Cai YZ(蔡永志)9,10,11; Guo, Zhen2,3,4
刊名ASTROPHYSICAL JOURNAL LETTERS
出版日期2024-07-01
卷号970期号:1
ISSN号2041-8205
DOI10.3847/2041-8213/ad5da4
产权排序第1完成单位
文献子类Article
英文摘要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.
学科主题天文学 ; 恒星与银河系
URL标识查看原文
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
WOS关键词CIRCUMSTELLAR MATERIAL ; DISTANCE ; EMISSION ; ASTROPY ; PROGENITOR ; SPECTRA ; PACKAGE ; PROJECT ; 2010JL ; 1999EM
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
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001272151800001
出版者IOP Publishing Ltd
资助机构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
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/27496]  
专题云南天文台_丽江天文观测站（南方基地）
云南天文台_中国科学院天体结构与演化重点实验室
作者单位1.Chinese Academy of Sciences South America Center for Astronomy (CASSACA), National Astronomical Observatories, CAS, Beijing, People's Republic of China
2.Millennium Institute of Astrophysics, Nuncio Monseñor Sotero Sanz 100, Of. 104, Providencia, Santiago, Chile;
3.Centre for Astrophysics Research, University of Hertfordshire, Hatfield AL10 9AB, UK;
4.Instituto de Física y Astronomía, Universidad de Valparaíso, ave. Gran Bretaña, 1111, Casilla 5030, Valparaíso, Chile;
5.INAF-Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, 35122 Padova, Italy;
6.Department of Astronomy, University of California, Berkeley, CA 94720-3411, USA;
7.Physics Department, Tsinghua University, Beijing, 100084, People's Republic of China;
8.Institut d'Astrophysique de Paris, CNRS-Sorbonne Université, 98 bis boulevard Arago, F-75014 Paris, France;
9.Key Laboratory for the Structure and Evolution of Celestial Objects, CAS, Kunming, 650216, People's Republic of China;
10.International Centre of Supernovae, Yunnan Key Laboratory, Kunming 650216, People's Republic of China;
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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