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Paper: The Energetic Balance of the Sun and Stars
Volume: 479, Progress in Physics of the Sun and Stars
Page: 485
Authors: Turck-Chièze, S.; Couvidat, S.; Gilles, D.; Le Pennec, M.
Abstract: Helio- and asteroseismology keep delivering unprecedented views on solar and stellar interiors that were not anticipated twenty years ago. After five decades of detailed measurements, it is interesting to question the classical stellar evolution models in the light of these observations. This report focuses on two important aspects of stellar evolution: the conservation of energy and the transfer of energy in radiative zones. We discuss the reliability of the opacity coefficients provided by Opacity Project (OP) and OPAL tables by creating a stellar plasma in a laboratory and using new computer capabilities to perform more complex calculations. We then discuss the reliability of the energetic balance in solar-like stars in the light of both helioseismology and neutrino detections. We cannot exclude the possibility that a more detailed balance might be considered that takes into account the action of dynamical phenomena like meridional circulation, a fossil magnetic field generated during the initial stellar contraction or gravity waves along the Main Sequence phase.
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