Predictive Stellar Astrophysics

Physics – Plasma Physics

Scientific paper

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Scientific paper

Advances in several different areas are making possible a more quantitative and precise understanding of how stars are born, live, and die. High energy density experiments at laser facilities and the Z-pinch, Moore's law, nuclear experiments, and ground and space-based astronomy conspire to present new challenges and opportunities. Laboratory experiments provide an empirical basis for thermonuclear reaction rates, opacities and equations of state, and hydrodynamics simulations. Computer simulation of stars provide predictions of abundances of nuclei to be compared with increasingly sophisticated observations, so that these abundances become diagnostics of stellar interiors, which are seen at stellar surfaces, in stellar winds, or novae and supernovae explosions. Understanding these phenomena in turn provides insight into the size and age of the Universe, the origin of neutron stars and black holes, and of the elements.

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