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Related papers: Modern Stellar Evolution Models for Low Mass Stars

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We examine contributions of second order physical processes to results of stellar evolution calculations amenable to direct observational testing. In the first paper in the series (Young et al. 2001) we established baseline results using…

Astrophysics · Physics 2009-11-10 Patrick A. Young , David Arnett

We aim to determine the constraints that observed chemical abundances put on the potential role of mass loss in metal poor dwarfs. Self-consistent stellar evolutionary models that include all the effects of atomic diffusion and radiative…

Solar and Stellar Astrophysics · Physics 2015-06-15 Mathieu Vick , Georges Michaud , Jacques Richer , Olivier Richard

Precise measurements of the fundamental properties of low-mass stars and brown dwarfs are key to understanding the physics underlying their formation and evolution. While there has been great progress over the last decade in studying the…

We review recent advancements in modeling the stellar to substellar transition. The revised molecular opacities, solar oxygen abundances and cloud models allow to reproduce the photometric and spectroscopic properties of this transition to…

Solar and Stellar Astrophysics · Physics 2013-03-01 F. Allard , D. Homeier , B. Freytag , W. Schaffenberger , A. S. Rajpurohit

We apply the new generation of theoretical models of low-mass stars to secondaries in CVs, focussing on systems above the period gap. The models confirm that the spectral type should be a good indicator of the donor mass. The orbital…

Astrophysics · Physics 2009-10-31 Ulrich Kolb , Isabelle Baraffe

Two-imcompressible phase model of star is briefly revised. Effects of rotation and general relativity are considered.

Astrophysics · Physics 2007-05-23 Zakir F. Seidov

A concordance model for angular momentum evolution has been developed by multiple investigators. This approach postulates that star forming regions and clusters are an evolutionary sequence which can be modeled with assumptions about the…

Solar and Stellar Astrophysics · Physics 2016-12-14 Carl T. Coker , Marc Pinsonneault , Donald M. Terndrup

We present new models for low-mass stars down to the hydrogen-burning limit that consistently couple atmosphere and interior structures, thereby superseding the widely used BCAH98 models. The new models include updated molecular linelists…

Solar and Stellar Astrophysics · Physics 2015-05-20 I. Baraffe , D. Homeier , F. Allard , G. Chabrier

This chapter summarizes our current understanding of the stellar population properties of bulges and outlines important future research directions.

Astrophysics of Galaxies · Physics 2015-12-09 Patricia Sanchez-Blazquez

We present extensive calculations of the structure and the evolution of low-massstars in the range 0.07-0.8 $\msol$, for metallicities $-2.0\le \mh \le 0.0$. These calculations are based on the most recent description of the microphysics…

Astrophysics · Physics 2008-11-26 Gilles Chabrier , Isabelle Baraffe

Young open clusters are our laboratories for studying high-mass star formation and evolution. Unfortunately, the information that they provide is difficult to interpret, and sometimes contradictory. In this contribution, I present a few…

Solar and Stellar Astrophysics · Physics 2019-12-06 Ignacio Negueruela

In this paper, we investigate the orbital and stellar parameters of low- and intermediate-mass close binary systems. We use models, presented in the catalogue of (Han et al. 2000) and calculate parameters of accretors. We also construct…

Solar and Stellar Astrophysics · Physics 2022-09-02 Dugasa Belay Zeleke , Seblu Humne Negu , Oleg Yu. Malkov

Numerous physical aspects of stellar physics have been presented in Ses- sion 2 and the underlying uncertainties have been tentatively assessed. We try here to highlight some specific points raised after the talks and during the general…

Solar and Stellar Astrophysics · Physics 2015-06-22 Arlette Noels , Angela Bragaglia

We present a grid of evolutionary calculations for metal-poor low-mass stars for a variety of initial helium and metal abundances. The intention is mainly to provide a database for deriving directly stellar ages of halo and globular cluster…

Astrophysics · Physics 2009-10-31 Achim Weiss , Helmut Schlattl

It is widely believed that central star binarity plays an important role in the formation and evolution of aspherical planetary nebulae, however observational support for this hypothesis is lacking. Here, we present the most recent results…

Solar and Stellar Astrophysics · Physics 2012-02-16 David Jones , Amy A. Tyndall , Leo Huckvale , Barnabas Prouse , Myfanwy Lloyd

The evolution of AGB stars is notoriously complex. The confrontation of AGB population models with observed stellar populations is a useful alternative to the detailed study of individual stars in efforts to converge towards a reliable…

Astrophysics of Galaxies · Physics 2010-11-23 Ariane Lançon

Stellar halos around galaxies retain fundamental evidence of the processes which lead to their build up. Sophisticated models of galaxy formation in a cosmological context yield quantitative predictions about various observable…

Astrophysics of Galaxies · Physics 2016-09-07 Laura Greggio , Renato Falomo , Michela Uslenghi

Two-dimensional models of rapidly rotating stars are already unavoidable for the interpretation of interferometric or asteroseismic data of this kind of stars. When combined with time evolution, they will allow the including of a more…

Solar and Stellar Astrophysics · Physics 2015-06-17 Michel Rieutord , Francisco Espinosa Lara

Aims: We study the evolution of stellar rotation and wind properties for low-mass main-sequence stars. Our aim is to use rotational evolution models to constrain the mass loss rates in stellar winds and to predict how their properties…

Solar and Stellar Astrophysics · Physics 2015-05-21 C. P. Johnstone , M. Güdel , I. Brott , T. Lüftinger

Stellar evolution models of massive stars are very sensitive to the adopted mass-loss scheme. The magnitude and evolution of mass-loss rates significantly affect the main sequence evolution, and the properties of post-main sequence objects,…

Solar and Stellar Astrophysics · Physics 2017-02-01 Zsolt Keszthelyi , Joachim Puls , Gregg Wade