Orbital-period Changes of Low-mass X-Ray Binaries Driven by Magnetic Braking
Magnetic braking (MB) plays an important role in driving the evolution of low-mass X-ray binaries (LMXBs). The modified MB prescription, the convection and rotation boosted (CARB) model, is very successful in reproducing the detected mass-transfer rates of persistent neutron star (NS) LMXBs. In this...
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2024-01-01
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| Online Access: | https://doi.org/10.3847/1538-4357/ad8b48 |
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| author | Yun-Ning Fan Yong Shao Wen-Cong Chen |
| author_facet | Yun-Ning Fan Yong Shao Wen-Cong Chen |
| author_sort | Yun-Ning Fan |
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| description | Magnetic braking (MB) plays an important role in driving the evolution of low-mass X-ray binaries (LMXBs). The modified MB prescription, the convection and rotation boosted (CARB) model, is very successful in reproducing the detected mass-transfer rates of persistent neutron star (NS) LMXBs. In this work, we investigate whether the CARB MB prescription could account for the formation and evolution of some NS and black hole (BH) LMXBs with an observed orbital-period derivative. Using the MESA code, we perform a detailed binary evolution model for six NS and three BH LMXBs. Our simulations find that the CARB MB prescription can successfully reproduce the observed donor-star masses, orbital periods, and period derivatives of four NS LMXBs and one BH LMXB. Our calculated effective temperatures are in good agreement with the detected spectral types of two NS LMXBs and one BH LMXB. However, the standard MB model makes it difficult to produce the observed period derivatives of those LMXBs experiencing a rapid orbital shrinkage or expansion. |
| format | Article |
| id | doaj-art-5deae4b2fbe74fbca352fba1e3dc7d1f |
| institution | Kabale University |
| issn | 1538-4357 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
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| series | The Astrophysical Journal |
| spelling | doaj-art-5deae4b2fbe74fbca352fba1e3dc7d1f2024-11-25T06:54:29ZengIOP PublishingThe Astrophysical Journal1538-43572024-01-01976221010.3847/1538-4357/ad8b48Orbital-period Changes of Low-mass X-Ray Binaries Driven by Magnetic BrakingYun-Ning Fan0https://orcid.org/0009-0006-0116-5175Yong Shao1https://orcid.org/0000-0003-2506-6906Wen-Cong Chen2https://orcid.org/0000-0002-0785-5349School of Science, Qingdao University of Technology , Qingdao 266525, People's Republic of China ; chenwc@pku.edu.cnDepartment of Astronomy, Nanjing University , Nanjing 210023, People's Republic of China; Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University) , Ministry of Education, Nanjing 210023, People's Republic of ChinaSchool of Science, Qingdao University of Technology , Qingdao 266525, People's Republic of China ; chenwc@pku.edu.cn; School of Physics and Electrical Information, Shangqiu Normal University , Shangqiu 476000, People's Republic of ChinaMagnetic braking (MB) plays an important role in driving the evolution of low-mass X-ray binaries (LMXBs). The modified MB prescription, the convection and rotation boosted (CARB) model, is very successful in reproducing the detected mass-transfer rates of persistent neutron star (NS) LMXBs. In this work, we investigate whether the CARB MB prescription could account for the formation and evolution of some NS and black hole (BH) LMXBs with an observed orbital-period derivative. Using the MESA code, we perform a detailed binary evolution model for six NS and three BH LMXBs. Our simulations find that the CARB MB prescription can successfully reproduce the observed donor-star masses, orbital periods, and period derivatives of four NS LMXBs and one BH LMXB. Our calculated effective temperatures are in good agreement with the detected spectral types of two NS LMXBs and one BH LMXB. However, the standard MB model makes it difficult to produce the observed period derivatives of those LMXBs experiencing a rapid orbital shrinkage or expansion.https://doi.org/10.3847/1538-4357/ad8b48Neutron starsOrbital evolutionX-ray binary starsStellar evolutionBlack holes |
| spellingShingle | Yun-Ning Fan Yong Shao Wen-Cong Chen Orbital-period Changes of Low-mass X-Ray Binaries Driven by Magnetic Braking The Astrophysical Journal Neutron stars Orbital evolution X-ray binary stars Stellar evolution Black holes |
| title | Orbital-period Changes of Low-mass X-Ray Binaries Driven by Magnetic Braking |
| title_full | Orbital-period Changes of Low-mass X-Ray Binaries Driven by Magnetic Braking |
| title_fullStr | Orbital-period Changes of Low-mass X-Ray Binaries Driven by Magnetic Braking |
| title_full_unstemmed | Orbital-period Changes of Low-mass X-Ray Binaries Driven by Magnetic Braking |
| title_short | Orbital-period Changes of Low-mass X-Ray Binaries Driven by Magnetic Braking |
| title_sort | orbital period changes of low mass x ray binaries driven by magnetic braking |
| topic | Neutron stars Orbital evolution X-ray binary stars Stellar evolution Black holes |
| url | https://doi.org/10.3847/1538-4357/ad8b48 |
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