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Early-phase Simultaneous Multiband Observations of the Type II Supernova SN 2024ggi with Mephisto

文献类型：期刊论文

作者Chen, Xinlei5; Kumar, Brajesh5; Er, Xinzhong5; Guo, Helong5; Yang, Yuan-Pei5; Lin, Weikang5; Fang, Yuan5; Du, Guowang5; Liu, Chenxu5; Zhao, Jiewei4
刊名ASTROPHYSICAL JOURNAL LETTERS
出版日期2024-08-01
卷号971期号:1页码:8
ISSN号2041-8205
DOI10.3847/2041-8213/ad62f7
通讯作者Kumar, Brajesh(brajesharies@gmail.com)
英文摘要We present early-phase good-cadence (hour-to-day) simultaneous multiband (ugi and vrz bands) imaging of the nearby supernova SN 2024ggi, which exploded in the nearby galaxy NGC 3621. A quick follow-up was conducted within less than a day after the explosion and continued for similar to 23 days. The uvg band light curves display a rapid rise (similar to 1.4 mag day-1) to maximum in similar to 4 days and absolute magnitude M g similar to -17.75 mag. The postpeak decay rate in redder bands is similar to 0.01 mag day-1. Different colors (e.g., u - g and v - r) of SN 2024ggi are slightly redder than SN 2023ixf. A significant rise (similar to 12.5 kK) in blackbody temperature (optical) was noticed within similar to 2 days after the explosion, which successively decreased, indicating shock break out inside a dense circumstellar medium surrounding the progenitor. Using semianalytical modeling, the ejecta mass and progenitor radius were estimated as 1.2 M-circle dot and similar to 550 R-circle dot. The archival deep images (g, r, i, and z bands) from the Dark Energy Camera Legacy Survey were examined, and a possible progenitor was detected in each band (similar to 22-22.5 mag) and had a mass range of 14-17 M-circle dot.
WOS关键词RED SUPERGIANT PROGENITOR ; DENSE CIRCUMSTELLAR MATERIAL ; LIGHT-CURVES ; MESSIER 101 ; SHOCK BREAKOUT ; 2023IXF ; EVOLUTION ; EMISSION ; SPECTROSCOPY ; TELESCOPE
资助项目Yunnan University Development Plan for World-Class University ; Yunnan University Development Plan for World-Class Astronomy Discipline ; Science and Technology Champion Project[202005AB160002] ; Science and Technology Champion Project[202305AT350002] ; Science and Technology Champion Project[202105AE160021] ; Yunnan Revitalization Talent Support Program ; National Natural Science Foundation of China (NSFC)[12303054] ; Yunnan Fundamental Research Projects[202401AU070063] ; International Centre of Supernovae, Yunnan Key Laboratory[202302AN360001]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001282707100001
出版者IOP Publishing Ltd
资助机构Yunnan University Development Plan for World-Class University ; Yunnan University Development Plan for World-Class Astronomy Discipline ; Science and Technology Champion Project ; Yunnan Revitalization Talent Support Program ; National Natural Science Foundation of China (NSFC) ; Yunnan Fundamental Research Projects ; International Centre of Supernovae, Yunnan Key Laboratory
源URL[http://ir.ynao.ac.cn/handle/114a53/27542]  
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
通讯作者Kumar, Brajesh
作者单位1.Yunnan Key Lab, Int Ctr Supernovae, Kunming 650216, Peoples R China
2.Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Kunming 650216, Peoples R China
3.Chinese Acad Sci, Yunnan Observ, Kunming 650216, Peoples R China
4.Yunnan Univ, Dept Astron, Kunming 650504, Yunnan, Peoples R China
5.Yunnan Univ, South Western Inst Astron Res, Kunming 650504, Yunnan, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Xinlei,Kumar, Brajesh,Er, Xinzhong,et al. Early-phase Simultaneous Multiband Observations of the Type II Supernova SN 2024ggi with Mephisto[J]. ASTROPHYSICAL JOURNAL LETTERS,2024,971(1):8.
APA Chen, Xinlei.,Kumar, Brajesh.,Er, Xinzhong.,Guo, Helong.,Yang, Yuan-Pei.,...&Cai YZ.(2024).Early-phase Simultaneous Multiband Observations of the Type II Supernova SN 2024ggi with Mephisto.ASTROPHYSICAL JOURNAL LETTERS,971(1),8.
MLA Chen, Xinlei,et al."Early-phase Simultaneous Multiband Observations of the Type II Supernova SN 2024ggi with Mephisto".ASTROPHYSICAL JOURNAL LETTERS 971.1(2024):8.

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