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Possible Formation Scenarios of ZTF J153932.16+502738.8-A Gravitational Source Close to the Peak of LISA's Sensitivity
Lu, Guoliang1,2; Zhu, Chunhua1,2; Wang, Zhaojun1,2; Liu, Helei1,2; Li, Lin1,2; Xie, Dian1; Liu, Jinzhong3
2020-02-10
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume890Issue:1Pages:69
Contribution Rank3
AbstractZTF 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.
KeywordClose binary stars White dwarf stars Classical novae
DOI10.3847/1538-4357/ab6bcc
Indexed BySCI
Language英语
WOS KeywordPOPULATION SYNTHESIS ; WHITE-DWARFS ; EVOLUTION ; BINARIES ; MODELS ; EJECTA ; STARS ; TIDES
Funding ProjectNational 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 Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000522096700001
PublisherIOP PUBLISHING LTD
Funding OrganizationNational Natural Science Foundation of China ; Tianshan Youth Project of Xinjiang
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Document Type期刊论文
Identifierhttp://ir.xao.ac.cn/handle/45760611-7/3467
Collection光学天文与技术应用研究室
Corresponding AuthorLu, Guoliang
Affiliation1.Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830046, Peoples R China
2.Xinjiang Univ, Ctr Theoret Phys, Urumqi 830046, Peoples R China
3.Chinese Acad Sci, Natl Astron Observ, Xinjiang Observ, Urumqi 830011, Peoples R China
Recommended Citation
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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