An Expanded Set of Los Alamos OPLIB Tables in MESA: Type-1 Rosseland-mean Opacities and Solar Models

Abstract

We present a set of 1194 Type-1 Rosseland-mean opacity tables for four different metallicity mixtures. These new Los Alamos OPLIB atomic radiative opacity tables are an order of magnitude larger in number than any previous opacity table release, and span regimes where previous opacity tables have not existed. For example, the new set of opacity tables expands the metallicity range to $Z$\,=\,10${}^{-6}$ to $Z$\,=\,0.2 which allows improved accuracy of opacities at low and high metallicity, increases the table density in the metallicity range $Z$\,=\,10${}^{-4}$ to $Z$\,=\,0.1 to enhance the accuracy of opacities drawn from interpolations across neighboring metallicities, and adds entries for hydrogen mass fractions between $X$\,=\,0 and $X$\,=\,0.1 including $X$\,=\,$10^{-2},10^{-3},10^{-4},10^{-5},10^{-6}$ that can improve stellar models of hydrogen deficient stars. We implement these new OPLIB radiative opacity tables in \MESA, and find that calibrated solar models agree broadly with previously published helioseismic and solar neutrino results. We find differences between using the new 1194 OPLIB opacity tables and the 126 OPAL opacity tables range from $\approx$\,20--80\% across individual chemical mixtures, up to $\approx$\,8\% and $\approx$\,15\% at the bottom and top of the solar convection zone respectively, and $\approx$\,7\% in the solar core. We also find differences between standard solar models using different opacity table sources that are on par with altering the initial abundance mixture. We conclude that this new, open-access set of OPLIB opacity tables does not solve the solar modeling problem, and suggest the investigation of physical mechanisms other than the atomic radiative opacity.

arXiv comment28 pages, 12 (13) figures. Accepted for Publication in ApJ

References in corpus (87)

• SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
• The NumPy array: a structure for efficient numerical computation
• The chemical composition of the Sun
• Modules for Experiments in Stellar Astrophysics (MESA)
• Modules for Experiments in Stellar Astrophysics (MESA): Giant Planets, Oscillations, Rotation, and Massive Stars
• Modules for Experiments in Stellar Astrophysics (MESA): Binaries, Pulsations, and Explosions
• Modules for Experiments in Stellar Astrophysics (MESA): Convective Boundaries, Element Diffusion, and Massive Star Explosions
• Modules for Experiments in Stellar Astrophysics (MESA): Pulsating Variable Stars, Rotation, Convective Boundaries, and Energy Conservation
• Low Temperature Opacities
• Solar fusion cross sections II: the pp chain and CNO cycles
• The chemical make-up of the Sun: A 2020 vision
• Shell-model calculations of stellar weak interaction rates: II. Weak rates for nuclei in the mass range A=45-65 in supernovae environment
• Modules for Experiments in Stellar Astrophysics (MESA): Time-Dependent Convection, Energy Conservation, Automatic Differentiation, and Infrastructure
• Precision measurement of the 7Be solar neutrino interaction rate in Borexino
• Line and Mean Opacities for Ultracool Dwarfs and Extrasolar Planets
• Updated Electron-Conduction Opacities: The Impact on Low-Mass Stellar Models
• Nominal values for selected solar and planetary quantities: IAU 2015 Resolution B3
• Helioseismology and Solar Abundances
• Up-dated opacities from the Opacity Project
• NACRE II: an update of the NACRE compilation of charged-particle-induced thermonuclear reaction rates for nuclei with mass number $A<16$
• A new Generation of Standard Solar Models
• What do we (not) know theoretically about solar neutrino fluxes?
• New Solar Composition: The Problem With Solar Models Revisited
• Constraining solar abundances using helioseismology
• 10,000 Standard Solar Models: a Monte Carlo Simulation
• Evolution of massive stars with pulsation-driven superwinds during the RSG phase
• Solar Neutrinos: Status and Prospects
• A New Generation of Los Alamos Opacity Tables
• Observational constraints on the origin of the elements. IV: The standard composition of the Sun
• Low-temperature gas opacity - AESOPUS: a versatile and quick computational tool
• Pulsating white dwarfs: new insights
• Coulomb tunneling for fusion reactions in dense matter: Path integral Monte Carlo versus mean field
• Fresh insights on the structure of the solar core
• Surprising Sun
• Global Seismology of the Sun
• Current challenges in the physics of white dwarf stars
• Characterising the observational properties of δ Sct stars in the era of space photometry from the Kepler mission
• On Variations Of Pre-Supernova Model Properties
• CN-Cycle Solar Neutrinos and Sun's Primordial Core Metalicity
• Solar structure and evolution
• A comparison of Rosseland-mean opacities from OP and OPAL
• The chemical composition of the Sun from helioseismic and solar neutrino data
• Exploring mass loss, low-Z accretion, and convective overshoot in solar models to mitigate the solar abundance problem
• Measurement of acoustic glitches in solar-type stars from oscillation frequencies observed by Kepler
• Asteroseismic determination of helium abundance in stellar envelopes
• A New Generation of Cool White Dwarf Atmosphere Models. IV. Revisiting the Spectral Evolution of Cool White Dwarfs
• Helioseismology and standard solar models
• OP data on CD for mean opacities and radiative accelerations
• Helium abundance in a sample of cool stars: measurements from asteroseismology
• Rosseland and flux mean opacities for Compton scattering
• New Conductive Opacities for White Dwarf Envelopes
• The Temperature Dependence of Solar Neutrino Fluxes
• Improvements to Stellar Structure Models, Based on a Grid of 3D Convection Simulations. I. $T(\tau )$-Relations
• Kappa-mechanism excitation of retrograde mixed modes in rotating B-type stars
• Accounting for highly excited states in detailed opacity calculations
• Seismic measurement of the locations of the base of convection zone and helium ionization zone for stars in the {\it Kepler} seismic LEGACY sample
• Interpretation of the BRITE oscillation data of the hybrid pulsator $\nu$ Eridani: a call for the modification of stellar opacities
• Solar models with convective overshoot, the solar-wind mass loss, and a PMS disk accretion: helioseismic quantities, Li depletion and neutrino fluxes
• Actinide opacities for modeling the spectra and light curves of kilonovae
• Complex asteroseismology of the $\beta$ Cep/SPB pulsator $\nu$ Eridani: constraints on opacities
• Line broadening and the solar opacity problem
• Theoretical Estimates of Stellar e-Captures. I. The half-life of 7Be in Evolved Stars
• TESS Cycle 1 observations of roAp stars with 2-min cadence data
• Highlights of Discoveries for $\delta$ Scuti Variable Stars From the Kepler Era
• Opacities of Singly and Doubly Ionised Neodymium and Uranium for Kilonova Emission Modeling
• Constraints on opacities from complex asteroseismology of B-type pulsators: the $\beta$ Cephei star $\theta$ Ophiuchi
• Higher metal abundances do not solve the solar problem
• First solar models with OPAS opacity tables
• Solar Neutrinos from CNO Electron Capture
• Imprint of planet formation in the deep interior of the Sun
• Evidence of a signature of planet formation processes from solar neutrino fluxes
• On Stellar Evolution In A Neutrino Hertzsprung-Russell Diagram
• Rayleigh scattering in dense fluid helium
• Borexino results on neutrinos from the Sun and Earth
• Detailed opacity calculations for astrophysical applications
• Infrared absorption of dense helium and its importance in the atmospheres of cool white dwarfs
• Observational properties of 155 O- and B-type massive pulsating stars
• The stellar photosphere-hydrogen ionization front interaction in Classical Pulsators: a theoretical explanation for observed period-colour relations
• Stellar models with self-consistent Rosseland opacities
• Seismic Solar Models from Ledoux discriminant inversions
• A need to revise stellar opacities from asteroseismology of $\delta$ Scuti stars
• Standard solar models: a perspective from updated solar neutrino fluxes and the gravity-mode period spacing
• Stellar Neutrino Emission Across The Mass-Metallicity Plane
• Solar Models with dynamic screening and early mass loss tested by helioseismic, astrophysical, and planetary constraints
• A novel analytic atmospheric $T(\tau )$ relation for stellar models
• Hydrodynamic modelling of pulsation period decrease in the Mira-type variable T UMi
• Evolutionary and Observational Properties of Red Giant Acoustic Glitch Signatures

Cited by in corpus (2)

• Modelling $\delta$ Scuti pulsations: A new grid of p, g, and f modes across pre-main-sequence to post-main-sequence evolution
• Solar models with protosolar accretion and turbulent mixing