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Related papers: Djehuty, a Code for Modeling Stars in Three Dimens…

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We introduce a new one-dimensional stellar evolution code, based on the existing Dartmouth code, that self-consistently accounts for the presence of a globally pervasive magnetic field. The methods involved in perturbing the equations of…

Solar and Stellar Astrophysics · Physics 2013-01-28 Gregory A. Feiden , Brian Chaboyer

A version of the STARS stellar evolution code has been developed that uses a non-simultaneous solution of the equations of stellar structure and evolution. In all other respects it is identical to the normal, fully simultaneous version. It…

Astrophysics · Physics 2009-11-11 Richard J. Stancliffe

We continue our study of the core helium flash using the three dimensional hydrodynamics code Djehuty. Continuing from earlier calculations, we now take relaxed 3D configurations and add various amounts of rotation. We find that rotation…

Astrophysics · Physics 2008-11-26 John Lattanzio , David Dearborn , Peter Eggleton , Don Dossa

We present a numerical code intended for calculating stellar evolution in close binary systems. In doing so, we consider that mass transfer episodes occur when the stellar size overflows the corresponding Roche lobe. In such situation we…

Astrophysics · Physics 2009-11-07 O. G. Benvenuto , M. A. De Vito

Hierarchical triple stars are ideal laboratories for studying the interplay between orbital dynamics and stellar evolution. Both stellar wind mass loss and three-body dynamics cooperate to destabilise triples, which can lead to a variety of…

Solar and Stellar Astrophysics · Physics 2022-05-11 S. Toonen , T. C. N. Boekholt , S. Portegies Zwart

This paper describes the first steps of development of a new multidimensional time implicit code devoted to the study of hydrodynamical processes in stellar interiors. The code solves the hydrodynamical equations in spherical geometry and…

Instrumentation and Methods for Astrophysics · Physics 2015-05-27 M. Viallet , I. Baraffe , R. Walder

P\'egase.3 is a Fortran 95 code modeling the spectral evolution of galaxies from the far-ultraviolet to submillimeter wavelengths. It also follows the chemical evolution of their stars, gas and dust. For a given scenario (a set of…

Instrumentation and Methods for Astrophysics · Physics 2019-02-07 Michel Fioc , Brigitte Rocca-Volmerange

Cles is an evolution code recently developed to produce stellar models meeting the specific requirements of studies in asteroseismology. It offers the users a lot of choices in the input physics they want in their models and its versatility…

Astrophysics · Physics 2009-06-23 R. Scuflaire , S. Theado , J. Montalban , A. Miglio , P. -O. Bourge , M. Godart , A. Thoul , A. Noels

The Evolution STEllaire en Rotation (ESTER) code is the first 2D stellar structure code to be made open-source and freely available to the astronomy and astrophysics community. An important and novel advancement of this code is that it can…

Solar and Stellar Astrophysics · Physics 2025-09-29 Russel White , Jane Pratt , Michel Rieutord

Dense star clusters are spectacular self-gravitating stellar systems in our Galaxy and across the Universe - in many respects. They populate disks and spheroids of galaxies as well as almost every galactic center. In massive elliptical…

Instrumentation and Methods for Astrophysics · Physics 2023-05-22 Rainer Spurzem , Albrecht Kamlah

The observable characteristics and subsequent evolution of young stellar populations is dominated by their massive stars. As our understanding of those massive stars and the factors affecting their evolution improves, so our interpretation…

Astrophysics of Galaxies · Physics 2022-09-28 Jan J. Eldridge , Elizabeth R. Stanway

Stars, and collections of stars, encode rich signatures of stellar physics and galaxy evolution. With properties influenced by both their environment and intrinsic nature, stars retain information about astrophysical phenomena that are not…

Astrophysics of Galaxies · Physics 2020-09-23 Kirsten Blancato

The stellar evolution code YREC is outlined with emphasis on its applications to helio- and asteroseismology. The procedure for calculating calibrated solar and stellar models is described. Other features of the code such as a non-local…

Astrophysics · Physics 2008-11-26 P. Demarque , D. B. Guenther , L. H. Li , A. Mazumdar , C. W. Straka

The Cesam code is a consistent set of programs and routines which perform calculations of 1D quasi-hydrostatic stellar evolution including microscopic diffusion of chemical species and diffusion of angular momentum. The solution of the…

Astrophysics · Physics 2009-06-23 Pierre Morel , Yveline Lebreton

The chemical enrichment of the Universe; the mass spectrum of planetary nebulae, white dwarfs and gravitational wave progenitors; the frequency distribution of Type I and II supernovae; the fate of exoplanets ... a multitude of phenomena…

Solar and Stellar Astrophysics · Physics 2021-10-05 Leen Decin

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

Massive stars are key sources of radiative, kinetic, and chemical feedback in the universe. Grids of massive star models computed by different groups each using their own codes, input physics choices and numerical approximations, however,…

Solar and Stellar Astrophysics · Physics 2015-06-23 Samuel Jones , Raphael Hirschi , Marco Pignatari , Alexander Heger , Cyril Georgy , Nobuya Nishimura , Chris Fryer , Falk Herwig

Model fitting is frequently used to determine the shape of galaxies and the point spread function, for examples, in weak lensing analyses or morphology studies aiming at probing the evolution of galaxies. However, the number of parameters…

Cosmology and Nongalactic Astrophysics · Physics 2012-10-03 Guoliang Li , Bo Xin , Wei Cui

The ANTARES code has been designed for simulation of astrophysical flows in a variety of situations, in particular in the context of stellar physics. Here, we describe extensions as necessary to model the interaction of pulsation and…

Solar and Stellar Astrophysics · Physics 2011-11-15 Eva Mundprecht , Herbert J. Muthsam

Field stars are frequently formed in pairs, and many of these binaries are part of triples or even higher-order systems. Even though, the principles of single stellar evolution and binary evolution, have been accepted for a long time, the…

Solar and Stellar Astrophysics · Physics 2016-12-20 S. Toonen , A. Hamers , S. Portegies Zwart