METUJE Global Hot Star Wind Models

0495373 - ASÚ 2019 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Krtička, J. - Kubát, Jiří
METUJE Global Hot Star Wind Models.
Workshop on Astrophysical Opacities. San Francisco: Astronomical Society of the Pacific, 2018, s. 201-206. ASP Conference Series, 515. ISBN 9781583819142. ISSN 1050-3390.
[Workshop on Astrophysical Opacities. Michigan (US), 01.08.2017-04.08.2017]
Grant CEP: GA ČR GA13-10589S
Institucionální podpora: RVO:67985815
Klíčová slova: stellar atmospheres * atomic data * line
Obor OECD: Astronomy (including astrophysics,space science)

We describe our own global (unified) hydrodynamic models of expanding atmospheres of hot stars. The models solve the hydrodynamic equations, kinetic equilibrium equations (non-LTE), and the comoving-frame radiative transfer equation consistently from the (nearly) hydrostatic photosphere to the supersonic wind. The model input parameters are the stellar effective temperature, radius, mass, and elemental abundances. For these stellar parameters, our code predicts the photosphere and wind structure and, in particular, the wind mass -loss rate and terminal velocity. The photospheric emergent flux and thermal structure nicely agree with the TLUSTY model atmospheres.
Trvalý link: http://hdl.handle.net/11104/0288366