Optical and Near-infrared Observations of the Nearby SN Ia 2017cbv
文献类型：期刊论文
| 作者 | Wang,Lingzhi4,5; Contreras,Carlos16; Hu,Maokai15; Hamuy,Mario A.14; Hsiao,Eric Y.13; Sand,David J.12; Anderson,Joseph P.11; Ashall,Chris13; Burns,Christopher R.10; Chen,Juncheng4,9 |
| 刊名 | The Astrophysical Journal
 |
| 出版日期 | 2020-11-01 |
| 卷号 | 904期号:1 |
| ISSN号 | 0004-637X |
| 关键词 | Type Ia supernovae |
| DOI | 10.3847/1538-4357/abba82 |
| 英文摘要 | Abstract Supernova (SN) 2017cbv in NGC 5643 is one of a handful of Type Ia supernovae (SNe Ia) reported to have excess blue emission at early times. This paper presents extensive BVRIYJHKs-band light curves of SN?2017cbv, covering the phase from ?16 to +125 days relative to B-band maximum light. The SN?2017cbv reached a B-band maximum of 11.710?±?0.006 mag, with a postmaximum magnitude decline of Δm15(B)?=?0.990?±?0.013 mag. The SN suffered no host reddening based on Phillips intrinsic color, the Lira–Phillips relation, and the CMAGIC diagram. By employing the CMAGIC distance modulus μ?=?30.58?±?0.05 mag and assuming H0?=?72 km s?1 Mpc?1, we found that 0.73 M⊙ 56Ni was synthesized during the explosion of SN?2017cbv, which is consistent with estimates using reddening- and distance-free methods via the phases of the secondary maximum of the near-IR- (NIR-) band light curves. We also present 14 NIR spectra from ?18 to +49?days relative to the B-band maximum light, providing constraints on the amount of swept-up hydrogen from the companion star in the context of the single degenerate progenitor scenario. No Paβ emission feature was detected from our postmaximum NIR spectra, placing a hydrogen mass upper limit of 0.1 M⊙. The overall optical/NIR photometric and NIR spectral evolution of SN?2017cbv is similar to that of a normal SN?Ia, even though its early evolution is marked by a flux excess not seen in most other well-observed normal SNe?Ia. We also compare the exquisite light curves of SN?2017cbv with some Mch delayed detonation models and sub-Mch double detonation models. |
| 语种 | 英语 |
| 出版者 | The American Astronomical Society |
| WOS记录号 | IOP:0004-637X-904-1-ABBA82 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/62349]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Wang,Lingzhi |
| 作者单位 | 1.George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, Department of Physics and Astronomy, Texas A&M University, College Station, TX 77843, USA 2.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People’s Republic of China 3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, People’s Republic of China 4.CAS Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, People’s Republic of China 5.Chinese Academy of Sciences, South America Center for Astronomy, National Astronomical Observatories, CAS, Beijing 100101, People’s Republic of China wanglingzhi@bao.ac.cn 6.Department of Astronomy, The University of Texas at Austin, 1 University Station C1400, Austin, TX 78712-0259, USA 7.Department of Physics, University of California, 1 Shields Avenue, Davis, CA 95616-5270, USA 8.Private Astronomer; tiaradiamond@gmail.com 9.School of Electronics and Information Engineering, Wuzhou University, Wuzhou 543002, People’s Republic of China 10.Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USA |
| 推荐引用方式 GB/T 7714 | Wang,Lingzhi,Contreras,Carlos,Hu,Maokai,et al. Optical and Near-infrared Observations of the Nearby SN Ia 2017cbv[J]. The Astrophysical Journal,2020,904(1). |
| APA | Wang,Lingzhi.,Contreras,Carlos.,Hu,Maokai.,Hamuy,Mario A..,Hsiao,Eric Y..,...&Zhang,Jujia.(2020).Optical and Near-infrared Observations of the Nearby SN Ia 2017cbv.The Astrophysical Journal,904(1). |
| MLA | Wang,Lingzhi,et al."Optical and Near-infrared Observations of the Nearby SN Ia 2017cbv".The Astrophysical Journal 904.1(2020). |
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来源：国家天文台
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