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

doi:10.3847/1538-4357/adcf1b

	SN 2023ehl: A Normal Type Ia Supernova with High-velocity Features
	Zeng, Xiangyun 1,2; Hu, Lei 1,2; Zheng, Sheng 1,2; Li, Xiaolong 1,2; Luo, Xiaoyu 1,2; Li, Sai 1,2,3; Howell, D. Andrew 4,5; Dong, Yize 6; Valenti, Stefano 6; Fu, Liping 1,7; Liu, Cheng 3; Li, Shiyu 3; Zeng, Shuguang 1,2; Huang, Yao 1,2; Luo, Yijing 1,2; Bostroem, K. Azalee 4,5,8; McCully, Curtis 5; Esamdin, Ali9 ; Andrews, Moira 4,5; Farah, Joseph R.4,5; Newsome, Megan 4,5; Terreran, Giacomo 10; Gonzalez, Estefania Padilla 11; Hoang, Emily 6; Ravi, Aravind Pazhayath 6; Mehta, Darshana 6; Retamal, Nicolas Meza 6; Zhang, Peng 1,2; Zhang, Rongjun 1,2; Li, Wang 1,2; Zhang, Haonan 1,2
	2025-06-10
Source Publication	ASTROPHYSICAL JOURNAL
ISSN	0004-637X
Volume	986 Issue:1 Pages:68
Contribution Rank	9
Abstract	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.
DOI	10.3847/1538-4357/adcf1b
Indexed By	SCI
Language	英语
WOS Keyword	CHANDRASEKHAR MASS MODELS ; WHITE-DWARF MODELS ; LIGHT-CURVE ; SPECTROSCOPIC OBSERVATIONS ; SYNTHETIC OBSERVABLES ; OPTICAL OBSERVATIONS ; FACTORY OBSERVATIONS ; EXPLOSION ; SPECTRA ; ULTRAVIOLET
Funding Project	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 Research Area	Astronomy & Astrophysics
WOS Subject	Astronomy & Astrophysics
WOS ID	WOS:001504799300001
Publisher	IOP Publishing Ltd
Funding Organization	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
Citation statistics
Document Type	期刊论文
Identifier	http://ir.xao.ac.cn/handle/45760611-7/7814
Collection	光学天文与技术应用研究室_变星研究团组
Corresponding Author	Zheng, Sheng; Li, Xiaolong
Affiliation	1.China Three Gorges Univ, Ctr Astron & Space Sci, Yichang 443000, Peoples R China 2.China Three Gorges Univ, Coll Math & Phys, Yichang 443000, Peoples R China 3.Beijing Acad Sci Technol, Beijing Planetarium, Beijing 100044, Peoples R China 4.Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA 5.Las Cumbres Observ, 6740 Cortona Dr Suite 102, Goleta, CA 93117 USA 6.Univ Calif Davis, Dept Phys & Astron, 1 Shields Ave, Davis, CA 95616 USA 7.Shanghai Normal Univ, Shanghai Key Lab Astrophys, Shanghai 200234, 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.Adler Planetarium, 1300 South DuSable Lake Shore Dr, Chicago, IL 60605 USA 11.Johns Hopkins Univ, Dept Phys & Astron, 3701 San Martin Dr, Baltimore, MD 21218 USA
Recommended Citation 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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