KMS of Xinjiang Astronomical Observatory, CAS
| SN 2017fzw: A Fast-Expanding Type Ia Supernova with Transitional Features | |
Huang, Jiayu1,2; Li, Yangyang1,2,3; Zeng, Xiangyun1,2; Zheng, Sheng1,2; Bird, Sarah A.1,2; Zhang, Jujia4,5,6; Esamdin, Ali7 ; Iskandar, Abdusamatjan7,8; Bostroem, K. Azaleee9,10; Zeng, Shuguang1,2; Xiao, Yanshan1,2; Huang, Yao1,2; Howell, D. Andrew9,10; McCully, Curtis9,10; Li, Wenxiong; Zhang, Tianmeng; Wang, Lifan; Hu, Lei
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| 2023-06-01 | |
| Source Publication | UNIVERSE
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| Volume | 9Issue:6Pages:295 |
| Contribution Rank | 7 |
| Abstract | In this study, we analyzed the optical observations of a subluminous Type Ia supernova (SN Ia) 2017fzw, which exhibited high photospheric velocity (HV) at B-band maximum light. The absolute B-band peak magnitude was determined to be M-max(B) = -18.65 +/- 0.13 mag, similar to 91bg-like SNe Ia. An estimation of the rate of decline for the B-band light curve was determined to be Delta(m15) ( B) = 1.60 +/- 0.06 mag. The spectra of SN 2017fzw were similar to those of 91bg-like SNe Ia, with prominent Ti II and Si II lambda 5972 features at early phases, gradually transitioning to spectra resembling normal (mainly HV subclass) SNe Ia at later phases, with a stronger Ca II NIR feature. Notably, throughout all phases of observation, SN 2017fzw displayed spectral evolution characteristics that were comparable to those of HV SNe Ia, and at peak brightness, the Si II lambda 6355 velocity was determined to be 13,800 +/- 415 km s(-1) and a more pronounced Ca II NIR feature was also detected. Based on these findings, we classify SN 2017fzw as a transitional object with properties of both normal and 91bg-like SNe Ia, providing support for the hypothesis of a continuous distribution of supernovae between these two groups. |
| Keyword | supernovae general individual SN 2017fzw transitional supernovae |
| DOI | 10.3390/universe9060295 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | LIGHT CURVES ; LUMINOSITY ; PHOTOMETRY ; SN-1991T ; SPECTRA ; ULTRAVIOLET ; MAGNITUDES ; DETONATION ; DIVERSITY ; DISTANCES |
| Funding Project | National Natural Science Foundation of China[12203029] ; National Natural Science Foundation of China[U2031202] |
| WOS Research Area | Astronomy & Astrophysics ; Physics |
| WOS Subject | Astronomy & Astrophysics ; Physics, Particles & Fields |
| WOS ID | WOS:001021133300001 |
| Publisher | MDPI |
| Funding Organization | National Natural Science Foundation of China |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/5308 |
| Collection | 中国科学院新疆天文台 光学天文与技术应用研究室 |
| Corresponding Author | Zeng, Xiangyun; Zheng, Sheng |
| Affiliation | 1.China Three Gorges Univ, Ctr Astron & Space Sci, Yichang 443000, Peoples R China 2.China Three Gorges Univ, Coll Sci, Yichang 443000, Peoples R China 3.Shanghai Normal Univ, Math & Sci Coll, Shanghai 200233, Peoples R China 4.Chinese Acad Sci, Yunnan Astron Observ, Kunming 650216, Peoples R China 5.Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Kunming 650216, Peoples R China 6.Chinese Acad Sci, Ctr Astron Mega Sci, 20A Datun Rd, Beijing 100012, Peoples R China 7.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 8.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 9.Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA 10.Cumbres Observ, 6740 Cortona Dr Suite 102, Goleta, CA 93117 USA 11.Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel 12.Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, Beijing 100012, Peoples R China 13.Texas A&M Univ, George P & Cynthia Woods Mitchell Inst Fundamental, Dept Phys & Astron, 4242 TAMU, College Stn, TX 77843 USA 14.Purple Mt Observ, Nanjing 210023, Peoples R China |
| Recommended Citation GB/T 7714 | Huang, Jiayu,Li, Yangyang,Zeng, Xiangyun,et al. SN 2017fzw: A Fast-Expanding Type Ia Supernova with Transitional Features[J]. UNIVERSE,2023,9(6):295. |
| APA | Huang, Jiayu.,Li, Yangyang.,Zeng, Xiangyun.,Zheng, Sheng.,Bird, Sarah A..,...&Hu, Lei.(2023).SN 2017fzw: A Fast-Expanding Type Ia Supernova with Transitional Features.UNIVERSE,9(6),295. |
| MLA | Huang, Jiayu,et al."SN 2017fzw: A Fast-Expanding Type Ia Supernova with Transitional Features".UNIVERSE 9.6(2023):295. |
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| Huang-2023-SN 2017fz（3193KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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