Presupernova Eruptions Triggered by Sudden Energy Deposition in Low-mass Core-collapse Supernova Progenitors
文献类型：期刊论文
| 作者 | Cha S(查帅); Lin H(林含); Chen XF(陈雪飞); Han ZW(韩占文) |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2026-02-10 |
| 卷号 | 998期号:1 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ae3948 |
| 产权排序 | 第1完成单位 |
| 通讯作者 | Zha, Shuai(zhashuai@ynao.ac.cn) |
| 文献子类 | Article |
| 英文摘要 | In low-mass core-collapse supernova (SN) progenitors, nuclear burning beyond oxygen can become explosive under degenerate conditions, triggering eruptive mass loss before the final explosion. We investigate such pre-SN eruptions using SNEC hydrodynamic simulations and realistic stellar models, parameterizing the nuclear energy deposition as a fraction of the binding energy of the combined He layer and H-rich envelope. For the lowest-mass model (9M circle dot), the ejecta mass (Mej) scales with the energy gained by the H-rich envelope via a power law (index similar to 3.5). Across 9-10M circle dot, this relation shows limited scatter within a factor of similar to 2.6, enabling an estimation of the gained energy from Mej. The shock passage also flattens the bound envelope, which can affect the SN light-curve morphology and provide another diagnostic for the eruption. Then, we compute the associated precursor light curves for the 9M circle dot model with the multigroup radiative-transfer code STELLA. These signals are typically faint, with bolometric luminosities of similar to 1039 erg lasting hundreds of days. Their cool blackbody spectra make them brighter in the infrared yet several magnitudes fainter than observed pre-SN precursors at the threshold for full envelope ejection. To aid future studies, we make our posteruption stellar profiles and precursor light curves publicly available. |
| URL标识 | 查看原文 |
| 出版地 | No.2 The Distillery, Glassfields, Avon Street, Bristol, ENGLAND |
| WOS关键词 | CIRCUMSTELLAR MATERIAL ; RED SUPERGIANTS ; LIGHT CURVES ; ELECTRON-CAPTURE ; HYDRODYNAMICAL SIMULATIONS ; PRECURSOR EMISSION ; SHOCK BREAKOUT ; IIP SUPERNOVAE ; FINAL FATE ; SN 2005CS |
| 资助项目 | (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic) divided by Natural Science Foundation of Yunnan Province (Yunnan Natural Science Foundation)[202505AV340004]; (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic) divided by Natural Science Foundation of Yunnan Province (Yunnan Natural Science Foundation)[202501AS070078]; MOST divided by National Natural Science Foundation of China (NSFC)[12288102]; MOST divided by National Natural Science Foundation of China (NSFC)[12125303]; MOST divided by National Natural Science Foundation of China (NSFC)[12090040/3]; MOST divided by National Natural Science Foundation of China (NSFC)[12393811]; MOST divided by National Natural Science Foundation of China (NSFC)[12473031]; MOST divided by National Natural Science Foundation of China (NSFC)[12403061]; New Cornerstone Science Foundation[XPLORER PRIZE]; MOST divided by National Key Research and Development Program of China (NKPs)[2021YFA1600401/2021YFA1600403] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001680972000001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic) divided by Natural Science Foundation of Yunnan Province (Yunnan Natural Science Foundation)[202505AV340004, 202501AS070078] ; MOST divided by National Natural Science Foundation of China (NSFC)[12288102, 12125303, 12090040/3, 12393811, 12473031, 12403061] ; New Cornerstone Science Foundation[XPLORER PRIZE] ; MOST divided by National Key Research and Development Program of China (NKPs)[2021YFA1600401/2021YFA1600403] |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/28913]  |
| 专题 | 云南天文台_大样本恒星演化研究组 |
| 通讯作者 | Cha S(查帅) |
| 作者单位 | International Centre of Supernovae (ICESUN), Yunnan Key Laboratory of Supernova Research, Yunnan Observatories, Chinese Academy of Sciences (CAS), Kunming 650216, People’s Republic of China; zhashuai@ynao.ac.cn, cxf@ynao.ac.cn, zhanwenhan@ynao.ac.cn |
| 推荐引用方式 GB/T 7714 | Cha S,Lin H,Chen XF,et al. Presupernova Eruptions Triggered by Sudden Energy Deposition in Low-mass Core-collapse Supernova Progenitors[J]. ASTROPHYSICAL JOURNAL,2026,998(1). |
| APA | 查帅,林含,陈雪飞,&韩占文.(2026).Presupernova Eruptions Triggered by Sudden Energy Deposition in Low-mass Core-collapse Supernova Progenitors.ASTROPHYSICAL JOURNAL,998(1). |
| MLA | 查帅,et al."Presupernova Eruptions Triggered by Sudden Energy Deposition in Low-mass Core-collapse Supernova Progenitors".ASTROPHYSICAL JOURNAL 998.1(2026). |
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来源：云南天文台
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