SN 2016iog: A fast-declining Type II-L supernova with an ultra-faint tail persistently interacting with circumstellar material
文献类型：期刊论文
| 作者 | Peng, Z.-H.14; Benetti, S.15; Cai YZ(蔡永志)16,17; Pastorello, A.15; Valerin, G.15; Reguitti, A.15,18; Fiore, A.1,15; Fang, Q.-L.19; Wang, Z.-Y.20,21; Berton, M.22 |
| 刊名 | ASTRONOMY & ASTROPHYSICS
 |
| 出版日期 | 2026-01-09 |
| 卷号 | 705 |
| 关键词 | circumstellar matter stars: mass-loss supernovae: general supernovae: individual: SN 2016iog |
| ISSN号 | 0004-6361 |
| DOI | 10.1051/0004-6361/202556330 |
| 产权排序 | 第3完成单位 |
| 文献子类 | Article |
| 英文摘要 | We present optical photometric and spectroscopic observations of the rapidly declining Type IIL supernova (SN) 2016iog. SN 2016iog reached its peak similar to 14 days after explosion, with an absolute magnitude in the V band of -18.64 +/- 0.15 mag, followed by a steep decline of 8.85 +/- 0.15 mag (100 d)(-1) post-peak. Such a high decline rate makes SN 2016iog one of the fastest-declining Type IIL SNe observed to date. The rapid rise in the light curve, combined with the nearly featureless continuum observed in the spectrum at +9.3 days, suggests the presence of interaction. In the recombination phase, we observed broad H alpha lines that persist at all epochs. In addition, the prominent double-peaked H alpha feature observed in the late-time spectrum (+190.8 days) is likely attributable either to significant dust formation within a cool dense shell or to asymmetric circumstellar material. These features suggest the presence of a sustained interaction around SN 2016iog. We propose that the observed characteristics of SN 2016iog can be qualitatively explained by assuming a low-mass H-rich envelope surrounding a red supergiant progenitor star with low-density circumstellar material. |
| 学科主题 | 天文学 ; 恒星与银河系 |
| URL标识 | 查看原文 |
| 出版地 | 17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE |
| WOS关键词 | CORE-COLLAPSE SUPERNOVAE ; SHOCK BREAKOUT ; LIGHT-CURVES ; MASS-LOSS ; PHOTOMETRIC-OBSERVATIONS ; RADIATIVE-TRANSFER ; BINARY COMPANION ; EMISSION-LINES ; DENSE SHELL ; DUST |
| 资助项目 | National Natural Science Foundation of China[12105032];National Natural Science Foundation of China[12225304];National Natural Science Foundation of China[12303054];National Natural Science Foundation of China[12288102];National Natural Science Foundation of China[12473031];National Key Research and Development Program of China[2024YFA1611603];National Key Research and Development Program of China[2021YFA1600404] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001658556200005 |
| 出版者 | EDP SCIENCES S A |
| 资助机构 | National Natural Science Foundation of China[12105032, 12225304, 12303054, 12288102, 12473031] ; National Key Research and Development Program of China[2024YFA1611603, 2021YFA1600404] |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/28861]  |
| 专题 | 云南天文台_大样本恒星演化研究组 |
| 通讯作者 | Cai YZ(蔡永志); Wang B(王博); Pan, Y. |
| 作者单位 | 1.INAF – Osservatorio Astronomico d’Abruzzo Via Mentore Maggini I-64100 Teramo, Italy; 2.Purple Mountain Observatory, Chinese Academy of Sciences Nanjing 210023, P.R. China 3.School of Physics and Electrical Engineering, Liupanshui Normal University, Liupanshui Guizhou 553004, P.R. China; 4.Physics Department, Tsinghua University Beijing 100084, P.R. China; 5.Adler Planetarium 1300 S. DuSable Lake Shore Drive Chicago IL 60605, USA; 6.Universitat Politècnica de Catalunya, Departament de Física c/ Esteve Terrades 5 08860 Castelldefels, Spain; 7.Department of Physics and Astronomy, University of Padova Via F. Marzolo 8 I-35131 Padova, Italy; 8.Laboratory of Instrumentation and Experimental Particle Physics Av. Prof. Gama Pinto 2 – 1649-003 Lisboa, Portugal; 9.INAF – Osservatorio Astronomico di Cagliari Via della Scienza 5 09047 Selargius (CA), Italy; 10.Institute for Space Studies of Catalonia (IEEC), Campus UPC 08860 Castelldefels (Barcelona), Spain; |
| 推荐引用方式 GB/T 7714 | Peng, Z.-H.,Benetti, S.,Cai YZ,et al. SN 2016iog: A fast-declining Type II-L supernova with an ultra-faint tail persistently interacting with circumstellar material[J]. ASTRONOMY & ASTROPHYSICS,2026,705. |
| APA | Peng, Z.-H..,Benetti, S..,蔡永志.,Pastorello, A..,Valerin, G..,...&Pan, Y..(2026).SN 2016iog: A fast-declining Type II-L supernova with an ultra-faint tail persistently interacting with circumstellar material.ASTRONOMY & ASTROPHYSICS,705. |
| MLA | Peng, Z.-H.,et al."SN 2016iog: A fast-declining Type II-L supernova with an ultra-faint tail persistently interacting with circumstellar material".ASTRONOMY & ASTROPHYSICS 705(2026). |
入库方式： OAI收割
来源：云南天文台
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