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The role of stars in the cosmic matter cycle.

Marigo P.
  Venerdì 30/09   15:00 - 18:00   Edificio Psicologia 2 - Aula 2E   III - Astrofisica
Stars are the engine of the cosmic matter cycle. Through powerful pulsations, winds and explosions they eject large quantities of newly synthesized chemical elements into interstellar medium from which new generations of stars will form. At the same time, they lock part of the baryonic matter in remnants left at the end of their evolution, $i.e.$ white dwarfs, neutron stars, black holes. Quantifying the role of stars in this context is a formidable challenge that requires synergy between various branches of physics (stellar evolution models, nuclear reaction experiments, hydrodynamics, astro-chemistry, pulsation theory, astronomical observations, etc.). In this framework I will highlight a few frontier research lines that have been gathering much interest and effort in recent years.