Stellar core collapse - Numerical model and infall epoch

Abstract

view Abstract Citations (643) References (65) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Stellar core collapse - Numerical model and infall epoch Bruenn, S. W. Abstract The core infall stage of the final evolution of a ten solar mass star is studied using an accurate and detailed numerical model. The features of the model include a realistic initial model and equation of state, general relativistic hydrodynamics, independent treatment of neutrino pairs, multigroup flux-limited diffusion, direct solution of the electron scattering and thermal production terms, evaluation of exact neutrino interaction expressions, and a consistent treatment of the effects of matter compression and expansion on the neutrinos, including the transparent cutoff. Deleptonization occuring during the collapse is carefully examined, and a detailed comparison is made between the numerical results for the collapse and shock propagation phases and the conceptual framework. Publication: The Astrophysical Journal Supplement Series Pub Date: August 1985 DOI: 10.1086/191056 Bibcode: 1985ApJS...58..771B Keywords: Gravitational Collapse; Stellar Cores; Stellar Models; Computational Astrophysics; Density Distribution; Entropy; Equations Of State; Hydrodynamic Equations; Neutrinos; Particle Interactions; Radiation Transport; Astrophysics full text sources ADS |