Criteria for Dynamical Timescale Mass Transfer of Metal-poor Intermediate-mass Stars
The stability criteria of rapid mass transfer and common-envelope evolution are fundamental in binary star evolution. They determine the mass, mass ratio, and orbital distribution of many important systems, such as X-ray binaries, type Ia supernovae, and merging gravitational-wave sources. We use ou...
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| Format: | Article |
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IOP Publishing
2023-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/acb7e9 |
| _version_ | 1827831495960559616 |
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| author | Hongwei Ge Christopher A Tout Xuefei Chen Arnab Sarkar Dominic J Walton Zhanwen Han |
| author_facet | Hongwei Ge Christopher A Tout Xuefei Chen Arnab Sarkar Dominic J Walton Zhanwen Han |
| author_sort | Hongwei Ge |
| collection | DOAJ |
| description | The stability criteria of rapid mass transfer and common-envelope evolution are fundamental in binary star evolution. They determine the mass, mass ratio, and orbital distribution of many important systems, such as X-ray binaries, type Ia supernovae, and merging gravitational-wave sources. We use our adiabatic mass-loss model to systematically survey intermediate-mass (IM) stars’ thresholds for dynamical timescale mass transfer. The impact of metallicity on the stellar responses and critical mass ratios is explored. Both tables ( Z = 0.001) and fitting formulae ( Z = 0.001 and Z = 0.02) of the critical mass ratios of IM stars are provided. An application of our results to intermediate-mass X-ray binaries (IMXBs) is discussed. We find that the predicted upper limit to mass ratios, as a function of orbital period, is consistent with the observed IMXBs that undergo thermal or nuclear timescale mass transfer. According to the observed peak X-ray luminosity, L _X , we predict the range of L _X for IMXBs as a function of the donor mass and the mass-transfer timescale. |
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| institution | Directory Open Access Journal |
| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-03-12T04:45:29Z |
| publishDate | 2023-01-01 |
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| spelling | doaj.art-e72ef0c0f2934049bb6f68fe91a8d2eb2023-09-03T09:29:32ZengIOP PublishingThe Astrophysical Journal1538-43572023-01-019451710.3847/1538-4357/acb7e9Criteria for Dynamical Timescale Mass Transfer of Metal-poor Intermediate-mass StarsHongwei Ge0https://orcid.org/0000-0002-6398-0195Christopher A Tout1https://orcid.org/0000-0002-1556-9449Xuefei Chen2https://orcid.org/0000-0001-5284-8001Arnab Sarkar3https://orcid.org/0000-0002-1455-2784Dominic J Walton4https://orcid.org/0000-0001-5819-3552Zhanwen Han5https://orcid.org/0000-0001-9204-7778Yunnan Observatories, Chinese Academy of Sciences , 396 YangFangWang, Guandu District, Kunming, 650216, People's Republic of China ; gehw@ynao.ac.cn, cxf@ynao.ac.cn, zhanwenhan@ynao.ac.cn; Institute of Astronomy, The Observatories, University of Cambridge , Madingley Road, Cambridge, CB3 0HA, UK ; cat@ast.cam.ac.uk, as3158@cam.ac.uk; Key Laboratory for Structure and Evolution of Celestial Objects, Chinese Academy of Sciences , P.O. Box 110, Kunming 650216, People's Republic of ChinaInstitute of Astronomy, The Observatories, University of Cambridge , Madingley Road, Cambridge, CB3 0HA, UK ; cat@ast.cam.ac.uk, as3158@cam.ac.ukYunnan Observatories, Chinese Academy of Sciences , 396 YangFangWang, Guandu District, Kunming, 650216, People's Republic of China ; gehw@ynao.ac.cn, cxf@ynao.ac.cn, zhanwenhan@ynao.ac.cn; Key Laboratory for Structure and Evolution of Celestial Objects, Chinese Academy of Sciences , P.O. Box 110, Kunming 650216, People's Republic of ChinaInstitute of Astronomy, The Observatories, University of Cambridge , Madingley Road, Cambridge, CB3 0HA, UK ; cat@ast.cam.ac.uk, as3158@cam.ac.ukCentre for Astrophysics Research, University of Hertfordshire , College Lane, Hatfield, AL10 9AB, UK ; dwalton354@gmail.comYunnan Observatories, Chinese Academy of Sciences , 396 YangFangWang, Guandu District, Kunming, 650216, People's Republic of China ; gehw@ynao.ac.cn, cxf@ynao.ac.cn, zhanwenhan@ynao.ac.cn; Key Laboratory for Structure and Evolution of Celestial Objects, Chinese Academy of Sciences , P.O. Box 110, Kunming 650216, People's Republic of China; University of Chinese Academy of Sciences , Beijing 100049, People's Republic of ChinaThe stability criteria of rapid mass transfer and common-envelope evolution are fundamental in binary star evolution. They determine the mass, mass ratio, and orbital distribution of many important systems, such as X-ray binaries, type Ia supernovae, and merging gravitational-wave sources. We use our adiabatic mass-loss model to systematically survey intermediate-mass (IM) stars’ thresholds for dynamical timescale mass transfer. The impact of metallicity on the stellar responses and critical mass ratios is explored. Both tables ( Z = 0.001) and fitting formulae ( Z = 0.001 and Z = 0.02) of the critical mass ratios of IM stars are provided. An application of our results to intermediate-mass X-ray binaries (IMXBs) is discussed. We find that the predicted upper limit to mass ratios, as a function of orbital period, is consistent with the observed IMXBs that undergo thermal or nuclear timescale mass transfer. According to the observed peak X-ray luminosity, L _X , we predict the range of L _X for IMXBs as a function of the donor mass and the mass-transfer timescale.https://doi.org/10.3847/1538-4357/acb7e9Binary starsStellar evolutionStellar physicsCommon envelope evolutionX-ray binary stars |
| spellingShingle | Hongwei Ge Christopher A Tout Xuefei Chen Arnab Sarkar Dominic J Walton Zhanwen Han Criteria for Dynamical Timescale Mass Transfer of Metal-poor Intermediate-mass Stars The Astrophysical Journal Binary stars Stellar evolution Stellar physics Common envelope evolution X-ray binary stars |
| title | Criteria for Dynamical Timescale Mass Transfer of Metal-poor Intermediate-mass Stars |
| title_full | Criteria for Dynamical Timescale Mass Transfer of Metal-poor Intermediate-mass Stars |
| title_fullStr | Criteria for Dynamical Timescale Mass Transfer of Metal-poor Intermediate-mass Stars |
| title_full_unstemmed | Criteria for Dynamical Timescale Mass Transfer of Metal-poor Intermediate-mass Stars |
| title_short | Criteria for Dynamical Timescale Mass Transfer of Metal-poor Intermediate-mass Stars |
| title_sort | criteria for dynamical timescale mass transfer of metal poor intermediate mass stars |
| topic | Binary stars Stellar evolution Stellar physics Common envelope evolution X-ray binary stars |
| url | https://doi.org/10.3847/1538-4357/acb7e9 |
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