Colóquio de Física

• Responsável: PPG-FIS
• Câmpus: Santo André
• Local: Sala A106-0
• Data: 14/08/2024
• Horário: 14:00 às 16:00
• Descrição:

  Palestrante: Lucas Tonetto (Univ. of Rome, Italy)

  Título: Unveiling the secrets of dense nuclear matter: temperature effects and implications for hot neutron stars

  Resumo:
  In different astrophysical environments involving neutron stars, such as mergers or newly born stars, a reliable model of a finite-temperature equation of state is needed. Temperature has implications for equilibrium and dynamical phenomena; therefore, a fully consistent framework should be able to account for thermal effects in single-nucleon properties while yielding accurate results for average thermodynamic quantities.

  In this talk, we begin with a brief overview of recent advancements in neutron-star physics. We then explore the impact of incorporating non-zero temperature effects on the equilibrium properties and dynamic phenomena of neutron-star matter. Using a recently developed effective interaction grounded in Correlated Basis Functions theory, which accounts for nuclear correlations as well as two- and three-nucleon potentials, we thoroughly examine its extension to non-zero temperature. This approach is subsequently applied to calculate the neutrino mean free path and emissivity, where we analyse how effective weak transition operators, taking into account beyond mean-field effects, influence the results.

• Necessita inscrição: Não
• Link de divulgação: https://mailchi.mp/36cff934c3f3/colquio-de-fsica-2005-s-14h-online-17852224

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