Results 41 to 50 of about 17,712 (190)
Modelling Time-dependent Convective Penetration in 1D Stellar Evolution
The Astrophysical JournalOne-dimensional stellar evolution calculations produce uncertain predictions for quantities like the age, core mass, core compactness, and nucleosynthetic yields; a key source of uncertainty is the modeling of interfaces between regions that are ...
Cole Johnston +9 more
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The Astrophysical Journal, 2023 We present the first isotopic abundances of both ^13 CO and C ^18 O in solar twin stars and test the results against several galactic chemical evolution (GCE) models with different nucleosynthesis prescriptions.
David R. Coria +5 more
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Linking 1D Evolutionary to 3D Hydrodynamical Simulations of Massive Stars
, 2016 Stellar evolution models of massive stars are important for many areas of astrophysics, for example nucleosynthesis yields, supernova progenitor models and understanding physics under extreme conditions.
Arnett, David +5 more
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Stellar Evolution and Convection in 3D Hydrodynamic Simulations of a Complete Burning Phase
GalaxiesOur understanding of stellar evolution and nucleosynthesis is limited by the uncertainties coming from the complex multi-dimensional processes in stellar interiors, such as convection and nuclear burning. Three-dimensional stellar models can improve this
Federico Rizzuti +8 more
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Challenges and Requirements in High-Precision Nuclear Astrophysics Experiments
Universe, 2022 In the 21th century astronomical observations, as well as astrophysical models, have become impressively precise. For a better understanding of the processes in stellar interiors, the nuclear physics of astrophysical relevance—known as nuclear ...
György Gyürky
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The CoRoT Evolution and Seismic Tools Activity: Goals and Tasks [PDF]
, 2008 The forthcoming data expected from space missions such as CoRoT require the capacity of the available tools to provide accurate models whose numerical precision is well above the expected observational errors. In order to secure that these tools meet the
Baglin, A. +11 more
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An Expanded Set of Los Alamos OPLIB Tables in MESA: Type-1 Rosseland-mean Opacities and Solar Models
The Astrophysical JournalWe 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
Ebraheem Farag +13 more
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Fluid dynamics of a mixed convective/stably stratified system—A review of some recent works
Comptes Rendus. Physique, 2020 Numerous fluid systems organise into a turbulent layer adjacent to a stably stratified one, for instance, planetary atmospheres and stellar interiors. Capturing the coupled dynamics of such systems and understanding the exchanges of energy and momentum ...
Le Bars, Michael +5 more
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Shear instabilities in a fully compressible polytropic atmosphere [PDF]
, 2015 Shear flows have an important impact on the dynamics in an assortment of different astrophysical objects including accreditation discs and stellar interiors.
Favier, B., Silvers, L. J., Witzke, V.
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The Astrophysical JournalTheoretical study of the high-order gravity-mode period spacing (Δ P _g ) pattern is relevant to a better understanding of the internal properties of intermediate-mass (1.5 M _⊙
Yoshiki Hatta, Takashi Sekii
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