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SN 2023ehl: A Normal Type Ia Supernova with High-velocity Features

文献类型：期刊论文

作者Zeng, Xiangyun6,11; Hu, Lei6,11; Zheng, Sheng6,11; Li, Xiaolong6,11; Luo, Xiaoyu6,11; Li, Sai6,7,11; Howell, D. Andrew1,5; Dong, Yize3; Valenti, Stefano3; Fu, Liping2,11
刊名ASTROPHYSICAL JOURNAL
出版日期2025-06-10
卷号986期号:1页码:68
ISSN号0004-637X
DOI10.3847/1538-4357/adcf1b
产权排序9
英文摘要SN 2023ehl, a normal Type Ia supernova with a typical decline rate, was discovered in the galaxy UGC 11555 and offers valuable insights into the explosion mechanisms of white dwarfs. We present a detailed analysis of SN 2023ehl, including spectroscopic and photometric observations. The supernova exhibits high-velocity features in its ejecta, which are crucial for understanding the physical processes during the explosion. We compared the light curves of SN 2023ehl with other well-observed Type Ia supernovae, finding similarities in their evolution. The line strength ratio R(Si ii) was calculated to be 0.17 +/- 0.04, indicating a higher photospheric temperature compared to other supernovae. The maximum quasi-bolometric luminosity was determined to be 1.52 x 1043 erg s-1, and the synthesized 56Ni mass was estimated at 0.77 +/- 0.05 M circle dot. The photospheric velocity at B-band maximum light was measured as 10,150 +/- 240 km s-1, classifying SN 2023ehl as a normal velocity Type Ia supernova. Our analysis suggests that SN 2023ehl aligns more with both the gravitationally confined detonation, providing a comprehensive view of the diversity and complexity of Type Ia supernovae.
WOS关键词CHANDRASEKHAR MASS MODELS ; WHITE-DWARF MODELS ; LIGHT-CURVE ; SPECTROSCOPIC OBSERVATIONS ; SYNTHETIC OBSERVABLES ; OPTICAL OBSERVATIONS ; FACTORY OBSERVATIONS ; EXPLOSION ; SPECTRA ; ULTRAVIOLET
资助项目MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[12203029] ; MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[2025AFB551] ; National Natural Science Foundation of China[2024D01D32] ; National Natural Science Foundation of China[2023TSYCLJ0053] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[AST-1911225] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[AST-1911151] ; NSF
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001504799300001
出版者IOP Publishing Ltd
资助机构MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809 ; National Natural Science Foundation of China ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; NSF
源URL[http://ir.xao.ac.cn/handle/45760611-7/7813]  
专题光学天文与技术应用研究室_变星研究团组
通讯作者Zheng, Sheng; Li, Xiaolong
作者单位1.Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA
2.Shanghai Normal Univ, Shanghai Key Lab Astrophys, Shanghai 200234, Peoples R China
3.Univ Calif Davis, Dept Phys & Astron, 1 Shields Ave, Davis, CA 95616 USA
4.Adler Planetarium, 1300 South DuSable Lake Shore Dr, Chicago, IL 60605 USA
5.Las Cumbres Observ, 6740 Cortona Dr Suite 102, Goleta, CA 93117 USA
6.China Three Gorges Univ, Coll Math & Phys, Yichang 443000, Peoples R China
7.Beijing Acad Sci Technol, Beijing Planetarium, Beijing 100044, Peoples R China
8.Univ Arizona, Steward Observ, 933 North Cherry Ave, Tucson, AZ 85721 USA
9.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China
10.Johns Hopkins Univ, Dept Phys & Astron, 3701 San Martin Dr, Baltimore, MD 21218 USA
推荐引用方式
GB/T 7714		 Zeng, Xiangyun,Hu, Lei,Zheng, Sheng,et al. SN 2023ehl: A Normal Type Ia Supernova with High-velocity Features[J]. ASTROPHYSICAL JOURNAL,2025,986(1):68.
APA Zeng, Xiangyun.,Hu, Lei.,Zheng, Sheng.,Li, Xiaolong.,Luo, Xiaoyu.,...&Zhang, Haonan.(2025).SN 2023ehl: A Normal Type Ia Supernova with High-velocity Features.ASTROPHYSICAL JOURNAL,986(1),68.
MLA Zeng, Xiangyun,et al."SN 2023ehl: A Normal Type Ia Supernova with High-velocity Features".ASTROPHYSICAL JOURNAL 986.1(2025):68.

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来源：新疆天文台

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