English
Related papers

Related papers: The Y^2 Stellar Evolutionary Tracks

200 papers

We present the R package stellaR, which is designed to access and manipulate publicly available stellar evolutionary tracks and isochrones from the Pisa low-mass database. The procedures of the extraction of important stages in the…

Solar and Stellar Astrophysics · Physics 2013-07-04 M. Dell'Omodarme , G. Valle

We present a new database of stellar evolution models for a large range of masses and chemical compositions, based on an up-to-date theoretical framework. We briefly discuss the physical inputs and the assumptions adopted in computing the…

Astrophysics · Physics 2010-12-09 S. Cassisi , A. Pietrinferni , M. Salaris , F. Castelli , D. Cordier , M. Castellani

We introduce the Yale-Potsdam Stellar Isochrones (YaPSI), a new grid of stellar evolution tracks and isochrones of solar-scaled composition. In an effort to improve the Yonsei-Yale database, special emphasis is placed on the construction of…

Solar and Stellar Astrophysics · Physics 2017-04-12 F. Spada , P. Demarque , Y. -C. Kim , T. S. Boyajian , J. M. Brewer

I describe a method to transform a set of stellar evolution tracks onto a uniform basis and then interpolate within that basis to construct stellar isochrones. The method accommodates a broad range of stellar types, from substellar objects…

Solar and Stellar Astrophysics · Physics 2016-01-21 Aaron Dotter

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

We present four large sets of evolutionary tracks for stars with initial chemical compositions [Y=0.250, Z=0.008], [Y=0.273, Z=0.019], [Y=0.320, Z=0.040] and [Y=0.390, Z=0.070] and enhancement of alpha elements with respect to the solar…

Astrophysics · Physics 2007-05-23 Bernardo Salasnich , Leo Girardi , Achim Weiss , Cesare Chiosi

The ever-expanding depth and quality of photometric and spectroscopic observations of stellar populations increase the need for theoretical models in regions of age-composition parameter space that are largely unexplored at present. Stellar…

Astrophysics · Physics 2009-11-13 Aaron Dotter , Brian Chaboyer , Darko Jevremovic , Veselin Kostov , E. Baron , J. W. Ferguson

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

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

Convective core overshoot affects stellar evolution rates and the dating of stellar populations. In this paper, we provide a patch to the $Y^2$ isochrones with an improved treatment of convective core overshoot. The new tracks cover the…

Astrophysics · Physics 2009-11-10 Pierre Demarque , Jong-Hak Woo , Yong-Cheol Kim , Sukyoung Yi

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

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

During the last few years, the Geneva stellar evolution group has released new grids of stellar models, including the effect of rotation and with updated physical inputs (Ekstr\"om et al. 2012; Georgy et al. 2013a,b). To ease the comparison…

Solar and Stellar Astrophysics · Physics 2017-04-26 Cyril Georgy , Sylvia Ekström

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

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…

I briefly introduce a database of models that describe the evolution of star clusters in several broad-band photometric systems. Models are based on the latest Padova stellar evolutionary tracks - now including the alpha-enhanced case and…

Astrophysics · Physics 2007-05-23 Leo Girardi

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

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

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

Stellar evolution tracks and isochrones are key inputs for a wide range of astrophysical studies; in particular, they are essential to the interpretation of photometric and spectroscopic observations of resolved and unresolved stellar…

Astrophysics · Physics 2008-11-26 Daniel Cordier , Adriano Pietrinferni , Santi Cassisi , Maurizio Salaris
‹ Prev 1 2 3 10 Next ›