Exploring Mass Transfer Mechanisms in Symbiotic Systems
We define two regimes of the parameter space of symbiotic systems based on the dominant mass transfer mechanism. A wide range of white dwarf (WD) mass, donor mass, and donor radius combinations are explored to determine the separation for each parameter combination, below which wind Roche-lobe (RL)...
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IOP Publishing
2025-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/adabca |
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| author | Irin Babu Vathachira Yael Hillman Amit Kashi |
| author_facet | Irin Babu Vathachira Yael Hillman Amit Kashi |
| author_sort | Irin Babu Vathachira |
| collection | DOAJ |
| description | We define two regimes of the parameter space of symbiotic systems based on the dominant mass transfer mechanism. A wide range of white dwarf (WD) mass, donor mass, and donor radius combinations are explored to determine the separation for each parameter combination, below which wind Roche-lobe (RL) overflow will be the dominant mass transfer mechanism. The underlying concept is the premise that the wind accelerates. If it reaches the RL before attaining sufficient velocity to escape, it will be trapped and gravitationally focused through the inner Lagrangian point toward the accreting WD. However, if the wind succeeds in attaining the required velocity to escape from the donor’s RL, it will disperse isotropically, and the dominant mass transfer mechanism will be the Bondi–Hoyle–Lyttleton prescription, in which only a fraction of the wind will be accreted onto the WD. We present these two regimes of the 4D parameter space, covering 375 different parameter combinations. |
| format | Article |
| id | doaj-art-a4a94bf10cd944d7a719a993d72c6046 |
| institution | DOAJ |
| issn | 1538-4357 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj-art-a4a94bf10cd944d7a719a993d72c60462025-08-20T03:17:39ZengIOP PublishingThe Astrophysical Journal1538-43572025-01-01980222410.3847/1538-4357/adabcaExploring Mass Transfer Mechanisms in Symbiotic SystemsIrin Babu Vathachira0https://orcid.org/0009-0003-3561-5961Yael Hillman1https://orcid.org/0000-0002-0023-0485Amit Kashi2https://orcid.org/0000-0002-7840-0181Department of Physics, Ariel University , Ariel, POB 3, 4070000, Israel ; kashi@ariel.ac.ilDepartment of Physics, Azrieli College of Engineering Jerusalem , Israel; Department of Physics, Technion—Israel Institute of Technology , Haifa, 3200003, IsraelDepartment of Physics, Ariel University , Ariel, POB 3, 4070000, Israel ; kashi@ariel.ac.il; Astrophysics, Geophysics and Space Science (AGASS) Center, Ariel University , Ariel, 4070000, IsraelWe define two regimes of the parameter space of symbiotic systems based on the dominant mass transfer mechanism. A wide range of white dwarf (WD) mass, donor mass, and donor radius combinations are explored to determine the separation for each parameter combination, below which wind Roche-lobe (RL) overflow will be the dominant mass transfer mechanism. The underlying concept is the premise that the wind accelerates. If it reaches the RL before attaining sufficient velocity to escape, it will be trapped and gravitationally focused through the inner Lagrangian point toward the accreting WD. However, if the wind succeeds in attaining the required velocity to escape from the donor’s RL, it will disperse isotropically, and the dominant mass transfer mechanism will be the Bondi–Hoyle–Lyttleton prescription, in which only a fraction of the wind will be accreted onto the WD. We present these two regimes of the 4D parameter space, covering 375 different parameter combinations.https://doi.org/10.3847/1538-4357/adabcaSymbiotic binary starsSymbiotic novaeBinary starsStellar accretionInteracting binary stars |
| spellingShingle | Irin Babu Vathachira Yael Hillman Amit Kashi Exploring Mass Transfer Mechanisms in Symbiotic Systems The Astrophysical Journal Symbiotic binary stars Symbiotic novae Binary stars Stellar accretion Interacting binary stars |
| title | Exploring Mass Transfer Mechanisms in Symbiotic Systems |
| title_full | Exploring Mass Transfer Mechanisms in Symbiotic Systems |
| title_fullStr | Exploring Mass Transfer Mechanisms in Symbiotic Systems |
| title_full_unstemmed | Exploring Mass Transfer Mechanisms in Symbiotic Systems |
| title_short | Exploring Mass Transfer Mechanisms in Symbiotic Systems |
| title_sort | exploring mass transfer mechanisms in symbiotic systems |
| topic | Symbiotic binary stars Symbiotic novae Binary stars Stellar accretion Interacting binary stars |
| url | https://doi.org/10.3847/1538-4357/adabca |
| work_keys_str_mv | AT irinbabuvathachira exploringmasstransfermechanismsinsymbioticsystems AT yaelhillman exploringmasstransfermechanismsinsymbioticsystems AT amitkashi exploringmasstransfermechanismsinsymbioticsystems |