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Evolution of double oxygen-neon white dwarf merger remnant

文献类型：期刊论文

作者Wu CY(吴程远)1,3,4; Xiong, Heran2; Han ZW(韩占文)1,3,4; Wang B(王博)1,3,4
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期2023-09-11
卷号525期号:4页码:6295-6302
ISSN号0035-8711
关键词binaries: close stars: evolution supernovae: general white dwarfs
DOI10.1093/mnras/stad2636
产权排序第1完成单位
文献子类Article
英文摘要Double white dwarf (WD) merger process and their post-merger evolution are important in many fields of astronomy, such as supernovae, gamma-ray bursts, gravitational waves, and so on. The evolutionary outcomes of double ultra-massive WD merger remnants are still a subject of debate, though the general consensus is that the merger remnant will collapse to form a neutron star (NS). In this work, we investigate the evolution of a 2.20M(circle dot) merger remnant stemmed from the coalescence of double 1.10M(circle dot) ONe WDs. We find that the remnant ignites off-centre neon burning at the position near the surface of primary WD soon after the merger, resulting in the stable inwardly propagating oxygen/neon (O/Ne) flame. The final outcomes of the merger remnant are sensitive to the effect of convective boundary mixing. If the mixing cannot stall the O/Ne flame, the flame will reach the centre within 20 yr, leading to the formation of super Chandrasekhar mass silicon core, and its final fate probably be NS through iron-core-collapse supernova. In contrast, if the convective mixing is effective enough to prevent the O/Ne flame from reaching the centre, the merger remnant will undergo electron capture supernova to form an ONeFe WD. Meanwhile, we find that the wind mass loss process may hardly alter the final fate of the remnant due to its fast evolution. Our results imply that the coalescence of double ONe WDs can form short lived giant like object, but the final outcomes (NS or ONeFe WD) are influenced by the uncertain convective mixing in O/Ne flame.
学科主题天文学
URL标识查看原文
出版地GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
WOS关键词GAMMA-RAY-BURST ; AFTERGLOW LIGHT CURVES ; EXTENDED EMISSION ; OPTICAL/NIR AFTERGLOW ; DURATION DISTRIBUTION ; INTRINSIC DURATIONS ; FUNDAMENTAL PLANE ; ENERGY INJECTION ; CENTRAL ENGINE ; FERMI-LAT
资助项目National Natural Science Foundation of China[12288102]; National Natural Science Foundation of China[12003013]; National Natural Science Foundation of China[12225304]; National Natural Science Foundation of China[12333008]; National Natural Science Foundation of China[2021YFA1600404]; National Key R&D Program of China[XBZG-ZDSYS-202117]; Western Light Project of CAS[CMS-CSST-2021-A12]; China Manned Space Project[202301AU070039]; China Manned Space Project[202001AS070029]; China Manned Space Project[202201BC070003]; Yunnan Fundamental Research Projects[2022-QYKYJH-ZYTS-016]; Frontier Scientific Research Program of Deep Space Exploration Laboratory[202302AN360001]; International Centre of Supernovae, Yunnan Key Laboratory
WOS研究方向Astronomy & Astrophysics
语种英语
出版者OXFORD UNIV PRESS
WOS记录号WOS:001183266000043
资助机构National Natural Science Foundation of China[12288102, 12003013, 12225304, 12333008] ; National Natural Science Foundation of China[2021YFA1600404] ; National Key R&D Program of China[XBZG-ZDSYS-202117] ; Western Light Project of CAS[CMS-CSST-2021-A12] ; China Manned Space Project[202301AU070039, 202001AS070029, 202201BC070003] ; Yunnan Fundamental Research Projects[2022-QYKYJH-ZYTS-016] ; Frontier Scientific Research Program of Deep Space Exploration Laboratory[202302AN360001] ; International Centre of Supernovae, Yunnan Key Laboratory
源URL[http://ir.ynao.ac.cn/handle/114a53/26491]  
专题云南天文台_大样本恒星演化研究组
云南天文台_中国科学院天体结构与演化重点实验室
作者单位1.International Centre of Supernovae, Yunnan Key Laboratory, Kunming, 650216, China;
2.Research School of Astronomy and Astrophysics, The Australian National University, Canberra, ACT, 2611, Australia
3.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650216, China;
4.Key Laboratory for the Structure and Evolution of Celestial Objects, Yunnan Observatories, CAS, Kunming, 650216, China;
推荐引用方式
GB/T 7714		 Wu CY,Xiong, Heran,Han ZW,et al. Evolution of double oxygen-neon white dwarf merger remnant[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2023,525(4):6295-6302.
APA 吴程远,Xiong, Heran,韩占文,&王博.(2023).Evolution of double oxygen-neon white dwarf merger remnant.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,525(4),6295-6302.
MLA 吴程远,et al."Evolution of double oxygen-neon white dwarf merger remnant".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 525.4(2023):6295-6302.

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