SN 2023ehl: A Normal Type Ia Supernova with High-velocity Features
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 exh...
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2025-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/adcf1b |
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| author | Xiangyun Zeng Lei Hu Sheng Zheng Xiaolong Li Xiaoyu Luo Sai Li D. Andrew Howell Yize Dong Stefano Valenti Liping Fu Cheng Liu Shiyu Li Shuguang Zeng Yao Huang Yijing Luo K. Azalee Bostroem Curtis McCully Ali Esamdin Moira Andrews Joseph R. Farah Megan Newsome Giacomo Terreran Estefania Padilla Gonzalez Emily Hoang Aravind Pazhayath Ravi Darshana Mehta Nicolas Meza Retamal Peng Zhang Rongjun Zhang Wang Li Haonan Zhang |
| author_facet | Xiangyun Zeng Lei Hu Sheng Zheng Xiaolong Li Xiaoyu Luo Sai Li D. Andrew Howell Yize Dong Stefano Valenti Liping Fu Cheng Liu Shiyu Li Shuguang Zeng Yao Huang Yijing Luo K. Azalee Bostroem Curtis McCully Ali Esamdin Moira Andrews Joseph R. Farah Megan Newsome Giacomo Terreran Estefania Padilla Gonzalez Emily Hoang Aravind Pazhayath Ravi Darshana Mehta Nicolas Meza Retamal Peng Zhang Rongjun Zhang Wang Li Haonan Zhang |
| author_sort | Xiangyun Zeng |
| collection | DOAJ |
| description | 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 × 10 ^43 erg s ^−1 , and the synthesized ^56 Ni mass was estimated at 0.77 ± 0.05 M _⊙ . 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. |
| format | Article |
| id | doaj-art-86f1af046b4d4c78944e7f7e5d2a3015 |
| institution | Kabale University |
| issn | 1538-4357 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
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| series | The Astrophysical Journal |
| spelling | doaj-art-86f1af046b4d4c78944e7f7e5d2a30152025-08-20T03:47:06ZengIOP PublishingThe Astrophysical Journal1538-43572025-01-0198616810.3847/1538-4357/adcf1bSN 2023ehl: A Normal Type Ia Supernova with High-velocity FeaturesXiangyun Zeng0https://orcid.org/0000-0002-8049-202XLei Hu1Sheng Zheng2Xiaolong Li3Xiaoyu Luo4https://orcid.org/0000-0003-0592-3042Sai Li5D. Andrew Howell6https://orcid.org/0000-0003-4253-656XYize Dong7https://orcid.org/0000-0002-7937-6371Stefano Valenti8https://orcid.org/0000-0001-8818-0795Liping Fu9Cheng Liu10Shiyu Li11Shuguang Zeng12Yao Huang13https://orcid.org/0000-0002-6552-6439Yijing Luo14K. Azalee Bostroem15https://orcid.org/0000-0002-4924-444XCurtis McCully16https://orcid.org/0000-0001-5807-7893Ali Esamdin17https://orcid.org/0000-0003-1845-4900Moira Andrews18https://orcid.org/0000-0002-1895-6639Joseph R. Farah19https://orcid.org/0000-0003-4914-5625Megan Newsome20https://orcid.org/0000-0001-9570-0584Giacomo Terreran21https://orcid.org/0000-0003-0794-5982Estefania Padilla Gonzalez22Emily Hoang23https://orcid.org/0000-0003-2744-4755Aravind Pazhayath Ravi24https://orcid.org/0000-0002-7352-7845Darshana Mehta25https://orcid.org/0009-0008-9693-4348Nicolas Meza Retamal26Peng Zhang27Rongjun Zhang28Wang Li29Haonan Zhang30Center for Astronomy and Space Sciences, China Three Gorges University , Yichang 443000, People’s Republic of China ; zsh@ctgu.edu.cn, hbxiaolong@ctgu.edu.cn; College of Mathematics and Physics, China Three Gorges University , Yichang 443000, People’s Republic of ChinaCenter for Astronomy and Space Sciences, China Three Gorges University , Yichang 443000, People’s Republic of China ; zsh@ctgu.edu.cn, hbxiaolong@ctgu.edu.cn; College of Mathematics and Physics, China Three Gorges University , Yichang 443000, People’s Republic of ChinaCenter for Astronomy and Space Sciences, China Three Gorges University , Yichang 443000, People’s Republic of China ; zsh@ctgu.edu.cn, hbxiaolong@ctgu.edu.cn; College of Mathematics and Physics, China Three Gorges University , Yichang 443000, People’s Republic of ChinaCenter for Astronomy and Space Sciences, China Three Gorges University , Yichang 443000, People’s Republic of China ; zsh@ctgu.edu.cn, hbxiaolong@ctgu.edu.cn; College of Mathematics and Physics, China Three Gorges University , Yichang 443000, People’s Republic of ChinaCenter for Astronomy and Space Sciences, China Three Gorges University , Yichang 443000, People’s Republic of China ; zsh@ctgu.edu.cn, hbxiaolong@ctgu.edu.cn; College of Mathematics and Physics, China Three Gorges University , Yichang 443000, People’s Republic of ChinaCenter for Astronomy and Space Sciences, China Three Gorges University , Yichang 443000, People’s Republic of China ; zsh@ctgu.edu.cn, hbxiaolong@ctgu.edu.cn; College of Mathematics and Physics, China Three Gorges University , Yichang 443000, People’s Republic of China; Beijing Planetarium, Beijing Academy of Science of Technology , Beijing 100044, People’s Republic of ChinaDepartment of Physics, University of California , Santa Barbara, CA 93106-9530, USA; Las Cumbres Observatory , 6740 Cortona Drive Suite 102, Goleta, CA 93117-5575, USADepartment of Physics and Astronomy, University of California , 1 Shields Avenue, Davis, CA 95616-5270, USADepartment of Physics and Astronomy, University of California , 1 Shields Avenue, Davis, CA 95616-5270, USACenter for Astronomy and Space Sciences, China Three Gorges University , Yichang 443000, People’s Republic of China ; zsh@ctgu.edu.cn, hbxiaolong@ctgu.edu.cn; Shanghai Key Lab for Astrophysics, Shanghai Normal University , Shanghai 200234, People’s Republic of ChinaBeijing Planetarium, Beijing Academy of Science of Technology , Beijing 100044, People’s Republic of ChinaBeijing Planetarium, Beijing Academy of Science of Technology , Beijing 100044, People’s Republic of ChinaCenter for Astronomy and Space Sciences, China Three Gorges University , Yichang 443000, People’s Republic of China ; zsh@ctgu.edu.cn, hbxiaolong@ctgu.edu.cn; College of Mathematics and Physics, China Three Gorges University , Yichang 443000, People’s Republic of ChinaCenter for Astronomy and Space Sciences, China Three Gorges University , Yichang 443000, People’s Republic of China ; zsh@ctgu.edu.cn, hbxiaolong@ctgu.edu.cn; College of Mathematics and Physics, China Three Gorges University , Yichang 443000, People’s Republic of ChinaCenter for Astronomy and Space Sciences, China Three Gorges University , Yichang 443000, People’s Republic of China ; zsh@ctgu.edu.cn, hbxiaolong@ctgu.edu.cn; College of Mathematics and Physics, China Three Gorges University , Yichang 443000, People’s Republic of ChinaDepartment of Physics, University of California , Santa Barbara, CA 93106-9530, USA; Las Cumbres Observatory , 6740 Cortona Drive Suite 102, Goleta, CA 93117-5575, USA; Steward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721-0065, USALas Cumbres Observatory , 6740 Cortona Drive Suite 102, Goleta, CA 93117-5575, USAXinjiang Astronomical Observatory, Chinese Academy of Sciences , Urumqi, Xinjiang 830011, People’s Republic of ChinaDepartment of Physics, University of California , Santa Barbara, CA 93106-9530, USA; Las Cumbres Observatory , 6740 Cortona Drive Suite 102, Goleta, CA 93117-5575, USADepartment of Physics, University of California , Santa Barbara, CA 93106-9530, USA; Las Cumbres Observatory , 6740 Cortona Drive Suite 102, Goleta, CA 93117-5575, USADepartment of Physics, University of California , Santa Barbara, CA 93106-9530, USA; Las Cumbres Observatory , 6740 Cortona Drive Suite 102, Goleta, CA 93117-5575, USAAdler Planetarium , 1300 South DuSable Lake Shore Drive, Chicago, IL 60605, USADepartment of Physics & Astronomy, Johns Hopkins University , 3701 San Martin Drive, Baltimore, MD 21218, USADepartment of Physics and Astronomy, University of California , 1 Shields Avenue, Davis, CA 95616-5270, USADepartment of Physics and Astronomy, University of California , 1 Shields Avenue, Davis, CA 95616-5270, USADepartment of Physics and Astronomy, University of California , 1 Shields Avenue, Davis, CA 95616-5270, USADepartment of Physics and Astronomy, University of California , 1 Shields Avenue, Davis, CA 95616-5270, USACenter for Astronomy and Space Sciences, China Three Gorges University , Yichang 443000, People’s Republic of China ; zsh@ctgu.edu.cn, hbxiaolong@ctgu.edu.cn; College of Mathematics and Physics, China Three Gorges University , Yichang 443000, People’s Republic of ChinaCenter for Astronomy and Space Sciences, China Three Gorges University , Yichang 443000, People’s Republic of China ; zsh@ctgu.edu.cn, hbxiaolong@ctgu.edu.cn; College of Mathematics and Physics, China Three Gorges University , Yichang 443000, People’s Republic of ChinaCenter for Astronomy and Space Sciences, China Three Gorges University , Yichang 443000, People’s Republic of China ; zsh@ctgu.edu.cn, hbxiaolong@ctgu.edu.cn; College of Mathematics and Physics, China Three Gorges University , Yichang 443000, People’s Republic of ChinaCenter for Astronomy and Space Sciences, China Three Gorges University , Yichang 443000, People’s Republic of China ; zsh@ctgu.edu.cn, hbxiaolong@ctgu.edu.cn; College of Mathematics and Physics, China Three Gorges University , Yichang 443000, People’s Republic of ChinaSN 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 × 10 ^43 erg s ^−1 , and the synthesized ^56 Ni mass was estimated at 0.77 ± 0.05 M _⊙ . 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.https://doi.org/10.3847/1538-4357/adcf1bSupernovaeType Ia supernovaeEjecta |
| spellingShingle | Xiangyun Zeng Lei Hu Sheng Zheng Xiaolong Li Xiaoyu Luo Sai Li D. Andrew Howell Yize Dong Stefano Valenti Liping Fu Cheng Liu Shiyu Li Shuguang Zeng Yao Huang Yijing Luo K. Azalee Bostroem Curtis McCully Ali Esamdin Moira Andrews Joseph R. Farah Megan Newsome Giacomo Terreran Estefania Padilla Gonzalez Emily Hoang Aravind Pazhayath Ravi Darshana Mehta Nicolas Meza Retamal Peng Zhang Rongjun Zhang Wang Li Haonan Zhang SN 2023ehl: A Normal Type Ia Supernova with High-velocity Features The Astrophysical Journal Supernovae Type Ia supernovae Ejecta |
| title | SN 2023ehl: A Normal Type Ia Supernova with High-velocity Features |
| title_full | SN 2023ehl: A Normal Type Ia Supernova with High-velocity Features |
| title_fullStr | SN 2023ehl: A Normal Type Ia Supernova with High-velocity Features |
| title_full_unstemmed | SN 2023ehl: A Normal Type Ia Supernova with High-velocity Features |
| title_short | SN 2023ehl: A Normal Type Ia Supernova with High-velocity Features |
| title_sort | sn 2023ehl a normal type ia supernova with high velocity features |
| topic | Supernovae Type Ia supernovae Ejecta |
| url | https://doi.org/10.3847/1538-4357/adcf1b |
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