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Orbital evolution of neutron-star-white-dwarf binaries by Roche lobe overflow and gravitational wave radiation
Yu, Shenghua1; Lu, Youjun2,3; Jeffery, C. Simon4
2021-05-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume503Issue:2Pages:2776-2790
AbstractWe investigate the effects of mass transfer and gravitational wave (GW) radiation on the orbital evolution of contact neutronstar-white-dwarf (NS-WD) binaries, and the detectability of these binaries by space GW detectors (e.g. Laser Interferometer Space Antenna, LISA; Taiji; Tianqin). A NS-WD binary becomes contact when the WD component fills its Roche lobe, at which the GW frequency ranges from similar to 0.0023 to 0.72 Hz for WD with masses similar to 0.05-1.4 M-circle dot. We find that some high-mass NS-WD binaries may undergo direct coalescence after unstable mass transfer. However, the majority of NS-WD binaries can avoid direct coalescence because mass transfer after contact can lead to a reversal of the orbital evolution. Our model can well interpret the orbital evolution of the ultra-compact X-ray source 4U 1820-30. For a 4-yr observation of 4U 1820-30, the expected signal-to-noise-ratio (SNR) in GW characteristic strain is similar to 11.0/10.4/2.2 (LISA/Taiji/Tianqin). The evolution of GW frequencies of NS-WD binaries depends on the WI) masses. NS-WD binaries with masses larger than 4U 1820-30 are expected to be detected with significantly larger SNRs. For a (1.4 + 0.5)M-circle dot NS-WD binary close to contact, the expected SNR for a one week observation is similar to 27/40/28 (LISA/Taijircianqin). For NS-WD binaries with masses of (1.4+ greater than or similar to 1.1) M-circle dot, the significant change of GW frequencies and amplitudes can be measured, and thus it is possible to determine the binary evolution stage. At distances up to the edge of the Galaxy (similar to 100 kpc), high-mass NS-WD binaries will be still detectable with SNR greater than or similar to 1.
Keywordgravitational waves binaries: close stars: neutron white dwarfs Galaxy: stellar content
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Open Project Programme of the key Laboratory of Radio Astronomy, CAS ; Open Project Programme of the key Laboratory of Radio Astronomy, CAS ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS ; N. Ireland Department for Communities ; N. Ireland Department for Communities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Open Project Programme of the key Laboratory of Radio Astronomy, CAS ; Open Project Programme of the key Laboratory of Radio Astronomy, CAS ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS ; N. Ireland Department for Communities ; N. Ireland Department for Communities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Open Project Programme of the key Laboratory of Radio Astronomy, CAS ; Open Project Programme of the key Laboratory of Radio Astronomy, CAS ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS ; N. Ireland Department for Communities ; N. Ireland Department for Communities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Open Project Programme of the key Laboratory of Radio Astronomy, CAS ; Open Project Programme of the key Laboratory of Radio Astronomy, CAS ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS ; N. Ireland Department for Communities ; N. Ireland Department for Communities
DOI10.1093/mnras/stab626
WOS KeywordNUCLEAR-DOMINATED ACCRETION ; X-RAY BINARIES ; MASS-TRANSFER ; 4U 1820-30 ; PERIOD ; DYNAMICS ; ROTATION ; DETECTABILITY ; DISCOVERY ; PULSARS
Language英语
Funding ProjectNational Natural Science Foundation of China[11673031] ; National Natural Science Foundation of China[11690024] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB23040100] ; National Key Research and Development Program of China[2020YFC2201400] ; Open Project Programme of the key Laboratory of Radio Astronomy, CAS ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS ; N. Ireland Department for Communities
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Open Project Programme of the key Laboratory of Radio Astronomy, CAS ; Open Project Programme of the key Laboratory of Radio Astronomy, CAS ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS ; N. Ireland Department for Communities ; N. Ireland Department for Communities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Open Project Programme of the key Laboratory of Radio Astronomy, CAS ; Open Project Programme of the key Laboratory of Radio Astronomy, CAS ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS ; N. Ireland Department for Communities ; N. Ireland Department for Communities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Open Project Programme of the key Laboratory of Radio Astronomy, CAS ; Open Project Programme of the key Laboratory of Radio Astronomy, CAS ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS ; N. Ireland Department for Communities ; N. Ireland Department for Communities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Open Project Programme of the key Laboratory of Radio Astronomy, CAS ; Open Project Programme of the key Laboratory of Radio Astronomy, CAS ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS ; Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS ; N. Ireland Department for Communities ; N. Ireland Department for Communities
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000648999700084
PublisherOXFORD UNIV PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/77879
Collection中国科学院国家天文台
Corresponding AuthorYu, Shenghua; Lu, Youjun; Jeffery, C. Simon
Affiliation1.Chinese Acad Sci, Natl Astron Observ, CAS Key Lab Fast, 20A Datun Rd, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, CAS Key Lab Computat Astrophys, 20A Datun Rd, Beijing 100101, Peoples R China
3.Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
4.Armagh Observ & Planetarium, Coll Hill, Armagh BT61 9DG, North Ireland
Recommended Citation
GB/T 7714
Yu, Shenghua,Lu, Youjun,Jeffery, C. Simon. Orbital evolution of neutron-star-white-dwarf binaries by Roche lobe overflow and gravitational wave radiation[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2021,503(2):2776-2790.
APA Yu, Shenghua,Lu, Youjun,&Jeffery, C. Simon.(2021).Orbital evolution of neutron-star-white-dwarf binaries by Roche lobe overflow and gravitational wave radiation.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,503(2),2776-2790.
MLA Yu, Shenghua,et al."Orbital evolution of neutron-star-white-dwarf binaries by Roche lobe overflow and gravitational wave radiation".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 503.2(2021):2776-2790.
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