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Related papers: Evolutionary tracks and isochrones for alpha-enhan…

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We present a large grid of stellar evolutionary tracks, which are suitable to modelling star clusters and galaxies by means of population synthesis. The tracks are presented for the initial chemical compositions [Z=0.0004, Y=0.23],…

Astrophysics · Physics 2009-05-29 Leo Girardi , Alessandro Bressan , Gianpaolo Bertelli , Cesare Chiosi

We present the updated version of the code used to compute stellar evolutionary tracks in Padova. It is the result of a thorough revision of the major input physics, together with the inclusion of the pre-main sequence phase, not present in…

Solar and Stellar Astrophysics · Physics 2015-03-20 A. Bressan , P. Marigo , L. Girardi , B. Salasnich , C. Dal Cero , S. Rubele , A. Nanni

The last decade showed an impressive observational effort from the photometric and spectroscopic point of view for ancient stellar clusters in our Galaxy and beyond. The theoretical interpretation of these new observational results requires…

Solar and Stellar Astrophysics · Physics 2013-06-06 M. Dell'Omodarme , G. Valle , S. Degl'Innocenti , P. G. Prada Moroni

We have constructed a new set of isochrones, called the Y^2 Isochrones, that represent an update of the Revised Yale Isochrones (RYI), using improved opacities and equations of state. Helium diffusion and convective core overshoot have also…

Astrophysics · Physics 2011-07-18 S. Yi , P. Demarque , Y. -C. Kim , Y. -W. Lee , C. Ree , Th. Lejeune , S. Barnes

This is the fourth paper of our new release of the BaSTI (a Bag of Stellar Tracks and Isochrones) stellar model and isochrone library. Following the updated solar-scaled, alpha-enhanced, and white dwarf model libraries, we present here…

We extend our theoretical computations for low-mass stars to intermediate-mass and massive stars, for which few databases exist in the literature. Evolutionary tracks and isochrones are computed from 2.50 to 20 solar masses for agrid of 37…

Solar and Stellar Astrophysics · Physics 2015-05-14 G. Bertelli , E. Nasi , L. Girardi , P. Marigo

We present a new set of isochrones in which the effect of the alpha-element enhancement is fully incorporated. These isochrones are an extension of the already published set of YY Isochrones (Yi et al. 2001: Paper 1), constructed for the…

Astrophysics · Physics 2010-04-06 Yong -Cheol Kim , Pierre Demarque , Sukyoung K. Yi , David R. Alexander

Integrated light from distant galaxies is often compared to stellar population models via the equivalent widths of spectral features--spectral indices--whose strengths rely on the abundances of one or more elements. Such comparisons hinge…

Astrophysics · Physics 2009-06-23 A. Dotter , B. Chaboyer , J. W. Ferguson , H. -c. Lee , G. Worthey , E. Baron , D. Jevremovic

We present a large and updated stellar evolution database for low-, intermediate- and high-mass stars in a wide metallicity range, suitable for studying Galactic and extragalactic simple and composite stellar populations using population…

Astrophysics · Physics 2009-11-10 A. Pietrinferni , S. Cassisi , M. Salaris , F. Castelli

Grids of stellar evolution are required in many fields of astronomy/astrophysics, such as planet hosting stars, binaries, clusters, chemically peculiar stars, etc. In this study, a grid of stellar evolution models with updated ingredients…

Solar and Stellar Astrophysics · Physics 2015-12-16 Mutlu Yildiz

We update and expand the MESA Isochrones and Stellar Tracks (MIST) database to include variations in the alpha-capture elements, specifically [alpha/Fe]=-0.2, 0, +0.2, +0.4, and +0.6 for -3 <= [Fe/H] <= +0.5. Variations in [alpha/Fe] are…

Solar and Stellar Astrophysics · Physics 2026-02-26 A Dotter , E Bauer , MJ Park , C Conroy , A Milone , M Joyce , M Cantiello

Tracks and isochrones have been computed in the range of initial masses 0.15 - 20 Mo for a grid of 39 chemical compositions with the metal content Z between 0.0001 and 0.070, and helium content Y between 0.23 and 0.46. The Padova stellar…

Astrophysics · Physics 2009-11-13 G. Bertelli , L. Girardi , P. Marigo , E. Nasi

The first paper in this series explored the effects of altering the chemical mixture of the stellar population on an element by element basis on stellar evolutionary tracks and isochrones to the end of the red giant branch. This paper…

This is the first of a series of papers presenting the Modules for Experiments in Stellar Astrophysics (MESA) Isochrones and Stellar Tracks (MIST) project, a new comprehensive set of stellar evolutionary tracks and isochrones computed using…

Solar and Stellar Astrophysics · Physics 2016-06-01 Jieun Choi , Aaron Dotter , Charlie Conroy , Matteo Cantiello , Bill Paxton , Benjamin D. Johnson

The ACS Survey of Galactic Globular Clusters, an HST Treasury Project, will deliver high quality, homogeneous photometry of 65 globular clusters. This paper introduces a new collection of stellar evolution tracks and isochrones suitable for…

Astrophysics · Physics 2010-11-05 A. Dotter , B. Chaboyer , D. Jevremovic , E. Baron , J. W. Ferguson , A. Sarajedini , J. Anderson

We present an updated release of the BaSTI (a Bag of Stellar Tracks and Isochrones) stellar model and isochrone library for a solar scaled heavy element distribution. The main input physics changed from the previous BaSTI release include…

Astrophysics of Galaxies · Physics 2018-04-11 S. L. Hidalgo , A. Pietrinferni , S. Cassisi , M. Salaris , A. Mucciarelli , A. Savino , A. Aparicio , V. Silva Aguirre , K. Verma

[Abridged] We present a large, new set of stellar evolution models and isochrones for an alpha-enhanced metal distribution typical of Galactic halo and bulge stars; it represents a homogeneous extension of our stellar model library for a…

Astrophysics · Physics 2011-09-30 A. Pietrinferni , S. Cassisi , M. Salaris , F. Castelli

We assess the systematic uncertainties in stellar evolutionary calculations for low- to intermediate-mass, main-sequence stars. We compare published stellar tracks from several different evolution codes with our own tracks computed using…

Solar and Stellar Astrophysics · Physics 2016-02-17 R. J. Stancliffe , L. Fossati , J. -C. Passy , F. R. N. Schneider

We present a new comprehensive collection of stellar evolutionary tracks and isochrones for rotating low- and intermediate-mass stars assembled with the updated version of PARSEC V2.0. This version includes our recent calibration of the…

Solar and Stellar Astrophysics · Physics 2022-09-21 C. T. Nguyen , G. Costa , L. Girardi , G. Volpato , A. Bressan , Y. Chen , P. Marigo , X. Fu , P. Goudfrooij

Recent advancements in stellar evolution modeling offer unprecedented accuracy in predicting the evolution and deaths of stars. We present new stellar evolutionary models computed with the updated PARSEC V2.0 code for a comprehensive and…

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