SN 2017fzw: A Fast-Expanding Type Ia Supernova with Transitional Features
文献类型：期刊论文
| 作者 | Huang, Jiayu13,14; Li, Yangyang12,13,14; Zeng, Xiangyun13,14; Zheng, Sheng13,14; Bird, Sarah A.13,14; Zhang, Jujia9,10,11; Esamdin, Ali8 ; Iskandar, Abdusamatjan7,8; Bostroem, K. Azaleee5,6; Zeng, Shuguang13,14
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| 刊名 | UNIVERSE
 |
| 出版日期 | 2023-06-01 |
| 卷号 | 9期号:6页码:16 |
| 关键词 | supernovae general individual SN 2017fzw transitional supernovae |
| DOI | 10.3390/universe9060295 |
| 通讯作者 | Zeng, Xiangyun(xyzeng2018@ctgu.edu.cn) ; Zheng, Sheng(zsh@ctgu.edu.cn) |
| 英文摘要 | 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. |
| WOS关键词 | LIGHT CURVES ; LUMINOSITY ; PHOTOMETRY ; SN-1991T ; SPECTRA ; ULTRAVIOLET ; MAGNITUDES ; DETONATION ; DIVERSITY ; DISTANCES |
| 资助项目 | National Natural Science Foundation of China[12203029] ; National Natural Science Foundation of China[U2031202] |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:001021133300001 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/5307]  |
| 专题 | 研究单元未命名 |
| 通讯作者 | Zeng, Xiangyun; Zheng, Sheng |
| 作者单位 | 1.Purple Mt Observ, Nanjing 210023, Peoples R China 2.Texas A&M Univ, George P & Cynthia Woods Mitchell Inst Fundamental, Dept Phys & Astron, 4242 TAMU, College Stn, TX 77843 USA 3.Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, Beijing 100012, Peoples R China 4.Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel 5.Cumbres Observ, 6740 Cortona Dr Suite 102, Goleta, CA 93117 USA 6.Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA 7.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 8.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 9.Chinese Acad Sci, Ctr Astron Mega Sci, 20A Datun Rd, Beijing 100012, Peoples R China 10.Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Kunming 650216, Peoples R China |
| 推荐引用方式 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):16. |
| 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),16. |
| MLA | Huang, Jiayu,et al."SN 2017fzw: A Fast-Expanding Type Ia Supernova with Transitional Features".UNIVERSE 9.6(2023):16. |
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来源：新疆天文台
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