Selected $β$ Cephei pulsators in eclipsing binaries
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866914051379953664 |
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| author | Cakirli, O. Hoyman, B. Ozdarcan, O. Bilir, S. |
| author_facet | Cakirli, O. Hoyman, B. Ozdarcan, O. Bilir, S. |
| contents | We present a comprehensive analysis of five eclipsing binary systems containing $β$ Cephei-type pulsating components. These systems were identified using the high-precision Transiting Exoplanet Survey Satellite (TESS) photometry and complemented by high-resolution spectroscopic data from multiple instruments (e.g., HARPS, FEROS, UVES). For each target, we derived fundamental parameters including masses, radii, effective temperatures, and metallicities through a combined analysis of light curves and radial velocity data. The atmospheric parameters were determined via spectral disentangling and MCMC-based fitting techniques. Absolute parameters were used to position components on the HR diagram, and evolutionary status was assessed using MESA/MIST stellar tracks. Frequency analysis revealed multiple significant pulsation modes in all systems. Our study increases the number of well-characterized $β$ Cephei pulsators in binaries and provides high-precision benchmarks for stellar evolution and asteroseismology. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_18277 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Selected $β$ Cephei pulsators in eclipsing binaries Cakirli, O. Hoyman, B. Ozdarcan, O. Bilir, S. Solar and Stellar Astrophysics We present a comprehensive analysis of five eclipsing binary systems containing $β$ Cephei-type pulsating components. These systems were identified using the high-precision Transiting Exoplanet Survey Satellite (TESS) photometry and complemented by high-resolution spectroscopic data from multiple instruments (e.g., HARPS, FEROS, UVES). For each target, we derived fundamental parameters including masses, radii, effective temperatures, and metallicities through a combined analysis of light curves and radial velocity data. The atmospheric parameters were determined via spectral disentangling and MCMC-based fitting techniques. Absolute parameters were used to position components on the HR diagram, and evolutionary status was assessed using MESA/MIST stellar tracks. Frequency analysis revealed multiple significant pulsation modes in all systems. Our study increases the number of well-characterized $β$ Cephei pulsators in binaries and provides high-precision benchmarks for stellar evolution and asteroseismology. |
| title | Selected $β$ Cephei pulsators in eclipsing binaries |
| topic | Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2509.18277 |