The YNEV stellar evolution and oscillation code

Abstract

We have developed a new stellar evolution and oscillation code YNEV, which calculates the structures and evolutions of stars, taking into account hydrogen and helium burning. A nonlocal turbulent convection theory and an updated overshoot mixing model are optional in this code. The YNEV code can evolve low- and intermediate-mass stars from pre-main sequence (PMS) to thermal pulsing asymptotic branch giant (TP-AGB) or white dwarf. The YNEV oscillation code calculates the eigenfrequencies and eigenfunctions of the adiabatic oscillations of given stellar structure. The input physics and the numerical scheme adopted in the code are introduced in this paper. The examples of solar models, stellar evolutionary tracks of low- and intermediate-mass stars with different convection theory (i.e., mixing-length theory (MLT) and the nonlocal turbulent convection theory), and stellar oscillations are shown.

18 pages, 14 figures, accepted for publication in the Research in Astronomy and Astrophysics (RAA)

References in corpus (20)

• The chemical composition of the Sun
• Modules for Experiments in Stellar Astrophysics (MESA)
• Evolutionary tracks and isochrones for low- and intermediate-mass stars: from 0.15 to 7 M_sun, and from Z=0.0004 to 0.03
• Low Temperature Opacities
• Towards Better Age Estimates for Stellar Populations: The Y^2 Isochrones for Solar Mixture
• Gravity modes as a way to distinguish between hydrogen- and helium-burning red giant stars
• Element Diffusion in the Solar Interior
• Updated Electron-Conduction Opacities: The Impact on Low-Mass Stellar Models
• ADIPLS -- the Aarhus adiabatic oscillation package
• The YY Isochrones for alpha-element Enhanced Mixtures
• The Y^2 Stellar Evolutionary Tracks
• ASTEC -- the Aarhus STellar Evolution Code
• Fresh insights on the structure of the solar core
• Intermediate-mass star models with different helium and metal contents
• A more realistic representation of overshoot at the base of the solar convective envelope as seen by helioseismology
• A k-omega model for stellar turbulent convection
• Convective overshoot mixing in stellar interior models
• Calibrating the updated overshoot mixing model on eclipsing binary stars: HY Vir, YZ Cas, X2 Hya & VV Crv
• The solar abundance problem: the effect of the turbulent kinetic flux on the solar envelope model
• Testing the core overshooting mixing described by the turbulent convection model on the eclipsing binary star HY Vir

Cited by in corpus (8)

• Phase II of the LAMOST-Kepler/K2 survey. I. Time series of medium-resolution spectroscopic observations
• Solar models with convective overshoot, the solar-wind mass loss, and a PMS disk accretion: helioseismic quantities, Li depletion and neutrino fluxes
• Applications of the $k$-$\omega$ model in stellar evolutionary models
• Standard solar models: a perspective from updated solar neutrino fluxes and the gravity-mode period spacing
• A simple scheme to implement a nonlocal turbulent convection model for the convective overshoot mixing
• Asteroseismic investigation on KIC 10526294 to probe convective core overshoot mixing
• Core overshoot constrained by the absence of a solar convective core and some solar-like stars
• Numerical integral of resistance coefficients in diffusion