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Related papers: Modern Stellar Evolution Models for Low Mass Stars

200 papers

We investigate the long-term dynamical evolution of two distinct stellar populations of low-mass stars in globular clusters in order to study whether the energy equipartition process can explain the high number of stars harbouring abundance…

Astrophysics · Physics 2009-11-13 T. Decressin , H. Baumgardt , P. Kroupa

We present evolutionary models for low mass stars from 0.075 to 1 $\msol$ for solar-type metallicities [M/H]= 0 and -0.5. The calculations include the most recent interior physics and the latest generation of non-grey atmosphere models. We…

Astrophysics · Physics 2008-11-26 Isabelle Baraffe , Gilles Chabrier , France Allard , Peter Hauschildt

Over the last half-century quantitative stellar spectroscopy has made great progress. However, most stellar abundance analyses today still employ rather simplified models, which can introduce severe systematic errors swamping the…

Astrophysics · Physics 2007-05-23 Martin Asplund

Results are presented on component masses and system angular momenta for over a hundred low-temperature contact binaries. It is found that the secondary components in close binary systems are very similar in mass. Our observational evidence…

Astrophysics · Physics 2009-11-11 K. D. Gazeas , P. G. Niarchos

The last findings on stellar and substellar objects in modified gravity are presented, allowing a reader to quickly jump into this topic. Early stellar evolution of low-mass stars, cooling models of brown dwarfs and giant gaseous exoplanets…

General Relativity and Quantum Cosmology · Physics 2023-11-27 Aneta Wojnar

In this introductory chapter of the Special Issue entitled `The Structure and Evolution of Stars', we highlight the recent major progress made in our understanding in the physics that governs stellar interiors. In so doing, we combine…

Solar and Stellar Astrophysics · Physics 2023-08-28 Dominic M. Bowman , Jennifer van Saders , Jorick S. Vink

It takes years of effort employing the best telescopes and instruments to obtain high-quality stellar photometry, astrometry, and spectroscopy. Stellar evolution models contain the experience of lifetimes of theoretical calculations and…

We show that the stellar masses implied by our predictions of the wind properties of massive stars are in agreement with masses derived from evolution theory and from direct measurements using spectroscopic binaries, contrary to previous…

Astrophysics · Physics 2007-05-23 Alex de Koter , Jorick S. Vink

Determining the properties of old stellar populations (those with age >1 Gyr) has long involved the comparison of their integrated light, either in the form of photometry or spectroscopic indexes, with empirical or synthetic templates. Here…

Astrophysics of Galaxies · Physics 2018-06-06 E R Stanway , J J Eldridge

We present Very Low Mass stellar models as computed including non-grey model atmospheres for selected assumptions about the star metallicities. The role of atmospheres is discussed and the models are compared with models based on the…

Astrophysics · Physics 2009-10-30 E. Brocato , S. Cassisi , V. Castellani

Binary stars evolve differently from single stars, thus binary evolution is very useful for astrophysical studies. This paper discusses the application of binary evolution in the studies of stars, star clusters, galaxies, and cosmology. In…

Solar and Stellar Astrophysics · Physics 2013-02-04 Zhongmu Li

We present an analysis of the integrated properties of the stellar populations in the Universidad Complutense de Madrid Survey of Halpha-selected galaxies. In this paper, the first of a series, we describe in detail the techniques developed…

A new set of stellar models in the mass range 1.2 to 9 $M_{\odot}$ is presented. The adopted chemical compositions cover the typical galactic values, namely $0.0001 \le Z \le 0.02$ and $0.23 \le Y \le 0.28$. A comparison among the most…

Astrophysics · Physics 2009-10-31 Inma Dominguez , Alessandro Chieffi , Marco Limongi , Oscar Straniero

High-mass stars are major players in the chemical and dynamical evolution of galaxies. Open clusters and associations represent the natural laboratories to study their evolution. In this review, I will present a personal selection of…

Astrophysics of Galaxies · Physics 2018-03-21 Ignacio Negueruela

Planetary nebulae are traditionally considered to represent the final evolutionary stage of all intermediate-mass stars ($\sim$0.7-8Msol). Recent evidence seems to contradict this picture. In particular, since the launch of the Hubble Space…

Solar and Stellar Astrophysics · Physics 2017-05-02 David Jones , Henri M. J. Boffin

In this talk I present the latest results of the ESTER project that has taken up the challenge of building two dimensional (axisymmetric) models of stars rotating at any rotation rate. In particular, I focus on main sequence massive and…

Solar and Stellar Astrophysics · Physics 2015-09-30 Michel Rieutord

Which sample of objects can give strong constraints on single-star evolution theory ? Whilst star cluster members share the same age and the same metallicity, many questions (e.g. field stars contamination, stellar rotation, presence of…

Astrophysics · Physics 2007-05-23 E. Lastennet , D. Valls-Gabaud , E. Oblak

Eclipsing binary stars provide highly accurate measurements of the fundamental physical properties of stars. They therefore serve as stringent tests of the predictions of evolutionary models upon which most stellar age determinations are…

Solar and Stellar Astrophysics · Physics 2009-02-17 Keivan G. Stassun , Leslie Hebb , Mercedes Lopez-Morales , Andrej Prsa

I review the evolutionary connection between low-mass X-ray binaries (LMXBs) and pulsars with binary companions (bPSRs) from a stellar binary evolution perspective. I focus on the evolution of stellar binaries with end-states consisting of…

Astrophysics · Physics 2009-06-23 Christopher J. Deloye

We briefly summarize the impact of the chemical peculiarities associated to the multiple population phenomenon in Galactic Globular Clusters, on the evolutionary properties and spectral energy distribution of second generation stars, in…

Solar and Stellar Astrophysics · Physics 2013-01-01 S. Cassisi , M. Salaris , A. Pietrinferni
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