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- Volume 93 - Année 2024
- No 3 - 41st Liège International Astrophysical Coll...
- Modeling the Spectrum of the High-mass X-ray Binary System IGR J17544-2619
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Modeling the Spectrum of the High-mass X-ray Binary System IGR J17544-2619
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We revised the parameters of the High-mass X-ray Binary IGR J17544-2619 using the well-measured distance to the system from the Gaia survey. We modeled the spectrum of the optical component using the PoWR model grids, and CMFGEN code and determined its physical parameters: Teff = 32000 K, log g = 3.6, L∗ = 1.8×105 L⊙, mopt = 27.5 M⊙. The measured parameters made it possible to determine the optical component's position on the Hertzsprung–Russell diagram as a star that has left the Main Sequence.
This work is distributed under the Creative Commons CC BY 4.0 Licence.
Paper presented at the 41st Liège International Astrophysical Colloquium on “The eventful life of massive star multiples,” University of Liège (Belgium), 15–19 July 2024.
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Over : Evgeniia Nikolaeva
email : evgeny.nikolaeva@gmail.com