Final Moments. III. Explosion Properties and Progenitor Constraints of CSM-interacting Type II Supernovae
文献类型：期刊论文
| 作者 | Jacobson-Galán, W. V.19,20; Dessart, L.18; Davis, K. W.17; Bostroem, K. A.16; Kilpatrick, C. D.14,15; Margutti, R.13,19; Filippenko, A. V.19; Foley, R. J.17; Chornock, R.19; Terreran, G.12 |
| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2025-10-10 |
| 卷号 | 992期号:1 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/adfa23 |
| 产权排序 | 第38完成单位 |
| 文献子类 | 天文学;天文学::恒星与银河系 |
| 英文摘要 | We present analysis of the plateau and late-time phase properties of a sample of 39 Type II supernovae (SNe II) that show narrow, transient, high-ionization emission lines (i.e., IIn-like) in their early-time spectra from interaction with confined, dense circumstellar material (CSM). Originally presented by W. V. Jacobson-Gal & aacute;n et al., this sample also includes multicolor light curves and spectra extending to late-time phases of 35 SNe with no evidence for IIn-like features at <2 days after first light. We measure photospheric phase light-curve properties for the distance-corrected sample and find that SNe II with IIn-like features have significantly higher luminosities and decline rates at +50 days than the comparison sample, which could be connected to inflated progenitor radii, lower ejecta mass, and/or persistent CSM interaction. However, we find no statistical evidence that the measured plateau durations and Ni-56 masses of SNe II with and without IIn-like features arise from different distributions. We estimate progenitor zero-age main-sequence (ZAMS) masses for all SNe with nebular spectroscopy through spectral model comparisons and find that most objects, both with and without IIn-like features, are consistent with progenitor masses <= 12.5 M-circle dot. Combining progenitor ZAMS masses with CSM densities inferred from early-time spectra suggests multiple channels for enhanced mass loss in the final years before core collapse, such as a convection-driven chromosphere or binary interaction. Finally, we find spectroscopic evidence for ongoing ejecta-CSM interaction at radii >10(16) cm, consistent with substantial progenitor mass-loss rates of similar to 10(-4)-10(-5)M(circle dot) yr(-1) (v(w) < 50 km s(-1)) in the final centuries to millennia before explosion. |
| 学科主题 | 天文学 ; 恒星与银河系 |
| URL标识 | 查看原文 |
| 出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
| WOS关键词 | CORE-COLLAPSE SUPERNOVA ; CIRCUMSTELLAR MEDIUM INTERACTION ; RADIATIVE-TRANSFER CALCULATIONS ; RED SUPERGIANT PROGENITOR ; LIGHT-CURVES ; MASS-LOSS ; SHOCK BREAKOUT ; P SUPERNOVA ; PHYSICAL-PROPERTIES ; DUST FORMATION |
| 资助项目 | N/A |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001590501100001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | N/A |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/28630]  |
| 专题 | 云南天文台_丽江天文观测站（南方基地） |
| 通讯作者 | Jacobson-Galán, W. V. |
| 作者单位 | 1.Department of Astronomy, University of Illinois at Urbana-Champaign, 1002 West Green Street, Urbana, IL 61801, USA; 2.Centro de Astronomía (CITEVA), Universidad de Antofagasta, Avenida Angamos 601, Antofagasta, Chile; 3.School of Physics, The University of Melbourne, VIC 3010, Australia; 4.Astrophysics Research Centre, School of Mathematics and Physics, Queen’s University Belfast, Belfast BT7 1NN, UK; 5.DARK, Niels Bohr Institute, University of Copenhagen, Jagtvej 128, 2200 Copenhagen, Denmark; 6.Millennium Institute of Astrophysics MAS, Nuncio Monsenor Sotero Sanz 100, Oficina 104, Providencia, Santiago, Chile; 7.European Southern Observatory, Alonso de Córdova 3107, Casilla 19, Santiago, Chile; 8.Department of Astronomy, University of Virginia, Charlottesville, VA 22904, USA; 9.Department of Physics, University of California, Santa Barbara, Santa Barbara, CA 93111, USA; 10.The NSF AI Institute for Artificial Intelligence and Fundamental Interactions, USA; |
| 推荐引用方式 GB/T 7714 | Jacobson-Galán, W. V.,Dessart, L.,Davis, K. W.,et al. Final Moments. III. Explosion Properties and Progenitor Constraints of CSM-interacting Type II Supernovae[J]. ASTROPHYSICAL JOURNAL,2025,992(1). |
| APA | Jacobson-Galán, W. V..,Dessart, L..,Davis, K. W..,Bostroem, K. A..,Kilpatrick, C. D..,...&Zheng, W..(2025).Final Moments. III. Explosion Properties and Progenitor Constraints of CSM-interacting Type II Supernovae.ASTROPHYSICAL JOURNAL,992(1). |
| MLA | Jacobson-Galán, W. V.,et al."Final Moments. III. Explosion Properties and Progenitor Constraints of CSM-interacting Type II Supernovae".ASTROPHYSICAL JOURNAL 992.1(2025). |
入库方式： OAI收割
来源：云南天文台
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