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Related papers: Confronting uncertainties in stellar physics II. e…

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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

In the era of advanced electromagnetic and gravitational wave detectors, it has become increasingly important to effectively combine and study the impact of stellar evolution on binaries and dynamical systems of stars. Systematic studies…

Solar and Stellar Astrophysics · Physics 2020-08-12 Poojan Agrawal , Jarrod Hurley , Simon Stevenson , Dorottya Szécsi , Chris Flynn

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

One-dimensional stellar evolution models have been successful at representing the structure and evolution of stars in diverse astrophysical contexts, but complications have been noted in the context of young, magnetically active stars, as…

Solar and Stellar Astrophysics · Physics 2020-03-11 Garrett Somers , Lyra Cao , Marc H. Pinsonneault

The scatter of the spatially resolved star formation main sequence (SFMS) is investigated in order to reveal signatures about the processes of galaxy formation and evolution. We have assembled a sample of 355 nearby galaxies with spatially…

The modelling of massive star evolution is a complex task, and is very sensitive to the way physical processes (such as convection, rotation, mass loss, etc.) are included in stellar evolution code. Moreover, the very high observed fraction…

Solar and Stellar Astrophysics · Physics 2016-12-19 Cyril Georgy , Raphael Hirschi , Sylvia Ekström

The Sun is the most studied and well-known star, and as such, solar fundamental parameters are often used to bridge gaps in the knowledge of other stars, when these are required for modelling. However, the two most powerful and precise…

Solar and Stellar Astrophysics · Physics 2020-10-06 Diogo Capelo , Ilídio Lopes

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

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

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 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

[abridged] Many topical astrophysical research areas, such as the properties of planet host stars, the nature of the progenitors of different types of supernovae and gamma ray bursts, and the evolution of galaxies, require complete and…

The compositions of stars are a critical diagnostic tool for many topics in astronomy such as the evolution of our Galaxy, the formation of planets, and the uniqueness of the Sun. Previous spectroscopic measurements indicate a large…

The literature on precision differential abundances (PDAs) in stars is extensive. Surveys include sun-like stars in the solar neighborhood, binary systems, and Galactic clusters. Numerous references as well as a discussion of relevant…

Solar and Stellar Astrophysics · Physics 2021-03-03 Charles R. Cowley , Donald J. Bord , Kutluay Yuce

Core overshoot is a large source of uncertainty in constructing stellar models. Whether the amount of overshoot is constant or mass dependent is not completely known, even though models sometimes assume a mass-based trend. In this work we…

Solar and Stellar Astrophysics · Physics 2020-11-25 Lucas S. Viani , Sarbani Basu

Helium-burning stars, in particular Cepheids, are especially difficult to model, as the choice of free parameters can greatly impact the shape of the blue loops - the part of the evolutionary track at which instability strip is crossed.…

Solar and Stellar Astrophysics · Physics 2024-08-15 Oliwia Ziółkowska , Radosław Smolec , Anne Thoul , Eoin Farrell , Rajeev Singh Rathour , Vincent Hocdé

We performed an analysis of the main theoretical uncertainties that affect the radius of low- and very-low mass-stars predicted by current stellar models. We focused on stars in the mass range 0.1-1Msun, on both the zero-age main-sequence…

Solar and Stellar Astrophysics · Physics 2018-02-21 E. Tognelli , P. G. Prada Moroni , S. Degl'Innocenti

The evolution of massive stars is the basis of several astrophysical investigations, from predicting gravitational-wave event rates to studying star-formation and stellar populations in clusters. However, uncertainties in massive star…

Solar and Stellar Astrophysics · Physics 2022-04-13 Poojan Agrawal , Dorottya Szécsi , Simon Stevenson , Jan J. Eldridge , Jarrod Hurley

The pre-main-sequence evolution of low-mass stars and brown dwarfs is studied numerically starting from the formation of a protostellar/proto-brown dwarf seed and taking into account the mass accretion onto the central object during the…

Solar and Stellar Astrophysics · Physics 2017-09-20 Eduard Vorobyov , Vardan Elbakyan , Takashi Hosokawa , Yuya Sakurai , Manuel Guedel , Harold Yorke

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