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Possible Formation Scenarios of ZTF J153932.16+502738.8-A Gravitational Source Close to the Peak of LISA's Sensitivity

文献类型：期刊论文

作者Lu, Guoliang2,3; Zhu, Chunhua2,3; Wang, Zhaojun2,3; Liu, Helei2,3; Li, Lin2,3; Xie, Dian3; Liu, Jinzhong1
刊名ASTROPHYSICAL JOURNAL
出版日期2020-02-10
卷号890期号:1页码:69
ISSN号0004-637X
关键词Close binary stars White dwarf stars Classical novae
DOI10.3847/1538-4357/ab6bcc
通讯作者Lu, Guoliang(guolianglv@xao.ac.cn)
产权排序3
英文摘要ZTF J153932.16+502738.8 (ZTFJ1539) is an eclipsing double-white-dwarf system with an orbital period of 6.91 minutes, and a significant source for LISA detection of gravitational waves. However, the massive white dwarf (WD), with a mass of about 0.61 M-circle dot, has a high effective temperature (48,900 K), and the lower-mass WD, with a mass of about 0.21 M-circle dot, has a low effective temperature (<10,000 K). This discrepancy challenges the popular theory of binary evolution. We investigate the formation of ZTFJ1539 via nova and Algol scenarios. Assuming that the massive WD in ZTFJ1539 just experiences a thermonuclear runaway, the nova scenario can explain the effective temperatures of the two WDs in ZTFJ1539. However, in order to enlarge a semi-detached orbit of about 4-5 minutes to a detached orbit of about 7 minutes, the nova scenario needs a much higher kick velocity of about 200 km s(-1) during nova eruption. The high kick velocity can result in a high eccentricity of about 0.2-0.6. The Algol scenario can also produce ZTFJ1539 if we take a high efficient parameter for ejecting the common envelope and enhance the mass-loss rate via stellar wind trigger by tidal effect.
WOS关键词POPULATION SYNTHESIS ; WHITE-DWARFS ; EVOLUTION ; BINARIES ; MODELS ; EJECTA ; STARS ; TIDES
资助项目National Natural Science Foundation of China[11863005] ; National Natural Science Foundation of China[11763007] ; National Natural Science Foundation of China[11803026] ; National Natural Science Foundation of China[11563008] ; National Natural Science Foundation of China[11473024] ; National Natural Science Foundation of China[11463005] ; National Natural Science Foundation of China[11503008] ; Tianshan Youth Project of Xinjiang[2017Q014]
WOS研究方向Astronomy & Astrophysics
语种英语
出版者IOP PUBLISHING LTD
WOS记录号WOS:000522096700001
资助机构National Natural Science Foundation of China ; Tianshan Youth Project of Xinjiang
源URL[http://ir.xao.ac.cn/handle/45760611-7/3466]  
专题新疆天文台_光学天文与技术应用研究室
通讯作者Lu, Guoliang
作者单位1.Chinese Acad Sci, Natl Astron Observ, Xinjiang Observ, Urumqi 830011, Peoples R China
2.Xinjiang Univ, Ctr Theoret Phys, Urumqi 830046, Peoples R China
3.Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830046, Peoples R China
推荐引用方式
GB/T 7714		 Lu, Guoliang,Zhu, Chunhua,Wang, Zhaojun,et al. Possible Formation Scenarios of ZTF J153932.16+502738.8-A Gravitational Source Close to the Peak of LISA's Sensitivity[J]. ASTROPHYSICAL JOURNAL,2020,890(1):69.
APA Lu, Guoliang.,Zhu, Chunhua.,Wang, Zhaojun.,Liu, Helei.,Li, Lin.,...&Liu, Jinzhong.(2020).Possible Formation Scenarios of ZTF J153932.16+502738.8-A Gravitational Source Close to the Peak of LISA's Sensitivity.ASTROPHYSICAL JOURNAL,890(1),69.
MLA Lu, Guoliang,et al."Possible Formation Scenarios of ZTF J153932.16+502738.8-A Gravitational Source Close to the Peak of LISA's Sensitivity".ASTROPHYSICAL JOURNAL 890.1(2020):69.

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来源：新疆天文台

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