Circumstellar material ejected violently by a massive star immediately before its death

doi:10.1016/j.scib.2023.09.015

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	Circumstellar material ejected violently by a massive star immediately before its death
	Zhang JJ(张居甲)1,2,3 ; Lin H(林含)1,2,4 ; Wang, Xiaofeng 5,6; Zhao ZY(赵泽毅)1,2,3 ; Li LP(李丽萍)1; Liu, Jialian 5; Yan, Shengyu 5; Xiang, Danfeng 5; Wang, Huijuan 7,8; Bai JM(白金明)1,2,3
发表期刊	SCIENCE BULLETIN
	2023-11-15
卷号	68 期号:21 页码:2548-2554
DOI	10.1016/j.scib.2023.09.015
产权排序	第1完成单位
收录类别	SCI ; EI
关键词	Supernova: SN 2023ixf Core -collapse supernova Circumstellar material Mass loss
摘要	Type II supernovae represent the most common stellar explosions in the Universe, for which the final stage evolution of their hydrogen-rich massive progenitors towards core-collapse explosion are elusive. The recent explosion of SN 2023ixf in a very nearby galaxy, Messier 101, provides a rare opportunity to explore this longstanding issue. With the timely high-cadence flash spectra taken within 1-5 days after the explosion, we can put stringent constraints on the properties of the surrounding circumstellar material around this supernova. Based on the rapid fading of the narrow emission lines and luminosity/profile of H alpha emission at very early times, we estimate that the progenitor of SN 2023ixf lost material at a mass-loss rate M-center dot approximate to 6x10(-4)M(circle dot)a(-1) over the last 2-3 years before explosion. This close-by material, moving at a velocity v(w)approximate to 55kms(-1), accumulates a compact CSM shell at the radius smaller than 7x10(14) cm from the progenitor. Given the high mass-loss rate and relatively large wind velocity presented here, together with the pre-explosion observations made about two decades ago, the progenitor of SN 2023ixf could be a short-lived yellow hypergiant that evolved from a red supergiant shortly before the explosion.
资助项目	National Key R&D Program of China[2021YFA1600404]; National Natural Science Foundation of China; China Manned Space Project[12173082]; China Manned Space Project[CMS-CSST-2021-A12]; China Manned Space Project[202201AT070069]; China Manned Space Project[202302AN360001]; Yunnan Province Foundation[12288102]; Top-notch Young Talents Program of Yunnan Province[12033003]; Chinese Academy of Sciences; International Centre of Supernovae, Yunnan Key Laboratory; Scholar Program of Beijing Academy of Science and Technology[11633002]; Tencent Xplorer Prize[DZ:BS202002]; CAS; People's Government of Yunnan Province
项目资助者	National Key R&D Program of China[2021YFA1600404] ; National Natural Science Foundation of China ; China Manned Space Project[12173082, CMS-CSST-2021-A12, 202201AT070069, 202302AN360001] ; Yunnan Province Foundation[12288102] ; Top-notch Young Talents Program of Yunnan Province[12033003] ; Chinese Academy of Sciences ; International Centre of Supernovae, Yunnan Key Laboratory ; Scholar Program of Beijing Academy of Science and Technology[11633002] ; Tencent Xplorer Prize[DZ:BS202002] ; CAS ; People's Government of Yunnan Province
语种	英语
学科领域	天文学
文章类型	Article
出版者	ELSEVIER
出版地	RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS
ISSN	2095-9273
URL	查看原文
WOS记录号	WOS:001114484100001
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
关键词[WOS]	SN 1999EM ; ENVIRONMENT ; EVOLUTION ; DISTANCE
EI入藏号	20233914789847
EI主题词	Supernovae
EI分类号	657.2 Extraterrestrial Physics and Stellar Phenomena
引用统计	被引频次：12[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
版本	出版稿
条目标识符	http://ir.ynao.ac.cn/handle/114a53/26515
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, Kunming 650216, China; 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China; 3.International Centre of Supernovae, Yunnan Key Laboratory, Kunming 650216, China; 4.Key Laboratory of Radio Astronomy and Technology, CAS, Beijing 100101, China; 5.Department of Physics, Tsinghua University, Beijing 100084, China; 6.Beijing Planetarium, Beijing Academy of Science and Technology, Beijing 100044, China; 7.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China; 8.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 101408, 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,Lin H,Wang, Xiaofeng,et al. Circumstellar material ejected violently by a massive star immediately before its death[J]. SCIENCE BULLETIN,2023,68(21):2548-2554.
APA	张居甲.,林含.,Wang, Xiaofeng.,赵泽毅.,李丽萍.,...&白金明.(2023).Circumstellar material ejected violently by a massive star immediately before its death.SCIENCE BULLETIN,68(21),2548-2554.
MLA	张居甲,et al."Circumstellar material ejected violently by a massive star immediately before its death".SCIENCE BULLETIN 68.21(2023):2548-2554.

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