中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 云南天文台
  3. 中国科学院云南天文台
  4. 丽江天文观测站（南方基地）
SN 2022ngb: A faint, slowly evolving Type IIb supernova with a low-mass envelope

文献类型：期刊论文

作者Zhao, J.-W.2,3; Benetti, S.4; Cai YZ(蔡永志)4,5,6; Pastorello, A.4; Elias, N.4,7; Reguitti, A.4,8; Valerin, G.4; Wang, Z.-Y.9,10; Cappellaro, E.4; Feng, G.-F.2,3
刊名ASTRONOMY & ASTROPHYSICS
出版日期2026-02-16
卷号706页码:25
关键词supernovae: general supernovae: individual: SN 2022ngb galaxies: individual: UGC 11380
ISSN号0004-6361
DOI10.1051/0004-6361/202557619
产权排序第4完成单位
通讯作者Cai, Y. -z.(caiyongzhi@ynao.ac.cn) ; Liu, X. -w.(x.liu@ynu.edu.cn) ; Yang, Y. -p.(ypyang@ynu.edu.cn)
文献子类Article
英文摘要Context. Type IIb supernovae (SNe IIb) are stellar explosions whose spectra reveal transitional features between hydrogen-rich (Type II) and helium-rich (Type Ib) SNe. Their progenitors are massive stars that were mostly stripped of their hydrogen envelope, likely through binary interaction and/or strong stellar winds. This makes such stars key tools in studies of the late stages of the evolution of massive stars. Aims. We present an extensive photometric and spectroscopic follow-up campaign of the Type IIb SN 2022ngb. Through the detailed modeling of this dataset, we aim to constrain the key physical parameters of the explosion, infer the nature of the progenitor star and its environment, and probe the dynamical properties of the ejecta. Methods. We analyzed photometric and spectroscopic data of SN 2022ngb. By constructing and modeling the bolometric light curve with semi-analytic models, we were able to estimate the primary explosion parameters. The spectroscopic data were compared with those of well-studied SNe IIb and NLTE models to constrain the properties of the progenitor and the structure of the resulting ejecta. Results. SN 2022ngb is a low-luminosity SN IIb with a peak bolometric luminosity of L-Bol = 7.76(-1.00)(+1.15) & times; 10(41) erg s(-1) and a V-band rising time of 24.32 +/- 0.50 days. The light curve modeling indicates an ejecta mass of similar to 2.9 - 3.2 M-circle dot, an explosion energy of similar to 1.4 & times; 10(51) erg, and a low synthesized Ni-56 mass of similar to 0.045 M-circle dot. The nebular phase spectra exhibit asymmetric line profiles, pointing to a nonspherical explosion and an anisotropic distribution of radioactive material. Our analysis reveals a relatively compact stripped-envelope progenitor with a pre-SN mass of approximately 4.7 M-circle dot (corresponding to a 15-16 M-circle dot ZAMS star). Conclusions. Our analysis suggests that SN 2022ngb originated from the explosion of a moderate-mass relatively compact, stripped-envelope star in a binary system. The asymmetries inferred from the nebular phase spectral line features indicate the occurrence of a nonspherical explosion.
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 ; STRIPPED-ENVELOPE ; LIGHT CURVES ; UBVRI PHOTOMETRY ; OPTICAL-SPECTRA ; IB SUPERNOVAE ; LINE-PROFILES ; PROGENITOR ; EVOLUTION ; EXPLOSION
资助项目National Natural Science Foundation of China[12303054];National Natural Science Foundation of China[12305066];National Natural Science Foundation of China[12473047];National Science Foundation[1238877];National Science Foundation[1440341];National Science Foundation[1911151];National Science Foundation[1911225];National Science Foundation[2034437];National Aeronautics and Space Administration[80NSSC18K0284];National Aeronautics and Space Administration[80NSSC18K1575];National Aeronautics and Space Administration[NN12AR55G];National Aeronautics and Space Administration[NNX08AR22G]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001692426200001
出版者EDP SCIENCES S A
资助机构National Natural Science Foundation of China[12303054, 12305066, 12473047] ; National Science Foundation[1238877, 1440341, 1911151, 1911225, 2034437] ; National Aeronautics and Space Administration[80NSSC18K0284, 80NSSC18K1575, NN12AR55G, NNX08AR22G]
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/28935]  
专题云南天文台_丽江天文观测站（南方基地）
通讯作者Cai YZ(蔡永志); Liu, X.-W.; Yang, Y.-P.
作者单位1.School of Sciences, European University Cyprus, Diogenes Street Engomi 1516 Nicosia, Cyprus;
2.South-Western Institute for Astronomy Research, Yunnan Key Laboratory of Survey Science, Yunnan University Kunming 650500 Yunnan, China;
3.Yunnan Key Laboratory of Survey Science, Yunnan University Kunming 650500 Yunnan, PR China;
4.INAF – Osservatorio Astronomico di Padova vicolo dell’Osservatorio 5 I-35122 Padova, Italy;
5.Yunnan Observatories, Chinese Academy of Sciences (CAS) Kunming 650216, PR China;
6.International Centre of Supernovae, Yunnan Key Laboratory Kunming 650216, PR China;
7.Institute of Space Sciences (ICE, CSIC), Campus UAB, Carrer de Can Magrans s/n E-08193 Barcelona, Spain;
8.INAF – Osservatorio Astronomico di Brera, Via E. Bianchi 46 23807 Merate (LC), Italy;
9.School of Astronomy and Space Science, University of Chinese Academy of Sciences Beijing 100049, PR China;
10.National Astronomical Observatories, Chinese Academy of Sciences Beijing 100101, PR China;
推荐引用方式
GB/T 7714		 Zhao, J.-W.,Benetti, S.,Cai YZ,et al. SN 2022ngb: A faint, slowly evolving Type IIb supernova with a low-mass envelope[J]. ASTRONOMY & ASTROPHYSICS,2026,706:25.
APA Zhao, J.-W..,Benetti, S..,蔡永志.,Pastorello, A..,Elias, N..,...&Yang, Y.-P..(2026).SN 2022ngb: A faint, slowly evolving Type IIb supernova with a low-mass envelope.ASTRONOMY & ASTROPHYSICS,706,25.
MLA Zhao, J.-W.,et al."SN 2022ngb: A faint, slowly evolving Type IIb supernova with a low-mass envelope".ASTRONOMY & ASTROPHYSICS 706(2026):25.

入库方式： OAI收割

来源：云南天文台

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。