Model Stellar Atmospheres
نویسندگان
چکیده
منابع مشابه
X-ray irradiated model stellar atmospheres
We present equations and details of the computer code for precise calculation of LTE model atmospheres which are illuminated by an external radiation field. Both radiative and hydrostatic equilibrium, and coherent Thomson electron scattering have been assumed. Radiation field at each frequency and depth level is computed with the method of variable Eddington factors. The code is fully suitable ...
متن کاملStellar model atmospheres with magnetic line blanketing
Model atmospheres of A and B stars are computed taking into account magnetic line blanketing. These calculations are based on the new stellar model atmosphere code LLM which implements direct treatment of the opacities due to the bound-bound transitions and ensures an accurate and detailed description of the line absorption. The anomalous Zeeman effect was calculated for the field strength...
متن کاملNew generations of stellar model atmospheres
Stellar model atmospheres form the basis for any element abundance determination and hence are crucial ingredients for studies of stellar, galactic and cosmic evolution. With recent observational progress with the advent of 8m-class telescopes and efficient spectrographs, the dominant source of uncertainty today originates with the assumptions and approximations in the analyses, emphasizing the...
متن کاملPulsating Stellar Atmospheres
We review the basic concepts, present state of theoretical models, and the future prospects for theory and observations of pulsating stellar atmospheres. Our emphasis is on radially pulsating cool stars, which dynamic atmospheres provide a general example for the differences with standard static model atmospheres.
متن کاملGravitational microlensing as a test of stellar model atmospheres
We present calculations illustrating the potential of gravitational microlensing to discriminate between classical models of stellar surface brightness profiles and the recently computed “Next Generation” models of Hauschildt et al. These spherically-symmetric models include a much improved treatment of molecular lines in the outer atmospheres of cool giants – stars which are very typical sourc...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1931
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/91.8.836