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Will post-nova V1315 Aql enter into hibernation?
Fang XH(方小慧)1,2,3; Qian SB(钱声帮)1,2,3,4
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2021-02-01
卷号501期号:2页码:3046-3053
关键词binaries: close binaries: eclipsing stars: evolution stars: individual: V1315 Aql novae, cataclysmic variables stars: winds, outflows
ISSN号0035-8711
DOI10.1093/mnras/staa3833
产权排序第1完成单位
文献子类Article
英文摘要

In a hibernation scenario, systems after a nova outburst will exhibit high mass-transfer rates and change themselves into nova-like variables. The disc winds from the high-state disc bring away extra mass and angular momentum that affect evolution. Assuming the evolution is stable, we calculated the mass-transfer rate. (M) over dot(2) and the effective mass-radius index zeta of the donor stars for nova-likes with respect to the mass-loss proportion alpha based on their secular orbital period variations, and we located their positions on the tau(M) over dot(2)/tau(KH) - zeta diagram, where tau(M) over dot(2) and tau(KH) are the mass-transfer and thermal time-scales, respectively. V1315 Aql, a nova-like star surrounded by a nova shell due to a nova eruption 500-1200 yr earlier, is an exemplar for the hibernation hypothesis. However, in comparison with other nova-likes, we found that the mass transfer in V1315 Aql is unstable, due to irradiation by the white dwarf and accretion, and we estimated its magnitude-decline rate as similar to 10(-4) mag yr(-1), which is consistent with long-term optical observations. Its time-scale of magnitude decline is comparable to the recurrence time-scale of nova eruption, which indicates that V1315 Aql will not enter into hibernation. This conclusion seems to confirm the prediction of Hillman et al. that a post-nova with orbital period >3 h will never hibernate deeply.

学科主题天文学 ; 恒星与银河系 ; 恒星形成与演化
出版地GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
资助项目National Natural Science Foundation of China[11933008] ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences
WOS关键词CATACLYSMIC VARIABLES ; STARS ; EVOLUTION ; BINARIES ; DWARF ; WIND
WOS研究方向Astronomy & Astrophysics
语种英语
出版者OXFORD UNIV PRESS
WOS记录号WOS:000608475600104
资助机构National Natural Science Foundation of China[11933008] ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences
内容类型期刊论文
源URL[http://ir.ynao.ac.cn/handle/114a53/24118]  
专题云南天文台_双星与变星研究组
通讯作者Fang XH(方小慧)
作者单位1.Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650216, Yunnan, Peoples R China
2.Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, POB 110, Kunming 650216, Yunnan, Peoples R China
3.Univ Chinese Acad Sci, Yuquan Rd 19,Sijingshang Block, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Ctr Astron Megasci, 20A Datun Rd, Beijing 100012, Peoples R China
推荐引用方式
GB/T 7714
Fang XH,Qian SB. Will post-nova V1315 Aql enter into hibernation?[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2021,501(2):3046-3053.
APA Fang XH,&Qian SB.(2021).Will post-nova V1315 Aql enter into hibernation?.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,501(2),3046-3053.
MLA Fang XH,et al."Will post-nova V1315 Aql enter into hibernation?".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 501.2(2021):3046-3053.
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