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AGB star atmospheres modeling as feedback to stellar evolutionary and galaxy models
Proceedings of the International Astronomical Union, 2018AbstractThe chemical enrichment of the Universe is considerably affected by the contribution of cool evolved stars. We studied the O-rich star R Peg and the C-rich star V Oph, using respectively the VLTI/GRAVITY and VLTI/MIDI instruments. We interpret the data using grids of 1-D and 3-D dynamic model atmospheres.
Gioia Rau +5 more
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Detached Eclipsing Binaries as a Test of Stellar Evolutionary Models
2000A comparison between the observations and the predictions of standard models and overshooting models (α ov=0.2) is presented in this communication. For this purpose, we built an interpolation algorithm that uses as input data a sample of detached double-lined eclipsing binaries with accurate masses and radii.
Ignasi Ribas +2 more
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Evolutionary stellar models including diffusion and radiative accelerations
EAS Publications Series, 2005Atomic diffusion has been suggested to play a significant role in a large variety of CP stars to reproduce observations. In this paper I will briefly present the physics included in the self-consistent models that include atomic diffusion and radiative accelerations.
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Application of a new evolutionary model for stellar populations to photometric maps of M32
Astrophysics and Space Science, 1989We have developed a new model of evolutionary synthesis of stellar population, from a working cyclical approximation to a general solution for the mass and time dependence of the ‘birth function’ of stars. The general solution enables us to introduce a functionG(t): the ratio of gas injected into a defined region to that which forms stars in the same ...
E. Casuso, J. E. Beckman, J. Cepa
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HR-Pypopstar: High-Wavelength-Resolution Stellar Populations Evolutionary Synthesis Model
Monthly Notices of the Royal Astronomical Society, 2021Miguel Cerviño +2 more
exaly
Evolutionary sequences of stellar models with very high metallicity. V. Z=0.1
1994We present detailed tabulations of a large grid of stellar models with initial chemical compositions [Y = 0.475, Z = 0.1] computed with the radiative opacities by Huebner et al. (1977) and convective overshoot. This choice of the opacity is due to the high metallicity in use, because the Livermore Library of radiative opacities (Iglesias et al.
Fagotto, F. +3 more
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Evolutionary sequences of stellar models with new radiative opacities. IV. Z=0.004 and Z=0.008
1994We present detailed tabulations of two large grids of stellar models with the initial chemical compositions [Y=0.240, Z=0.004] and [Y=0.250, Z=0.008], computed with the most recent radiative opacities (OPAL) by Iglesias et al. (1992). This paper continues the series initiated by Bressan et al.
Fagotto, F. +3 more
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Evolutionary sequences of stellar models with new radiative opacities. III. Z=0.0004 and Z=0.05
1994We present detailed tabulations of two large grids of stellar models with the extreme initial chemical composition [Z=0.0004, Y=0.230], and [Z=0.050, Y=0.352]. The models are computed with the most recent radiative opacities (OPAL) by Iglesias et al.
Fagotto, F. +3 more
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