• An empirical test of the theory of crystallization in stellar interiors 

      Winget, Donald Earl; Kepler, Souza Oliveira; Kanaan Neto, Antonio Nemer; Montgomery, Michael Houston; Giovannini Junior, Odilon (1997) [Artigo de periódico]
      Our theoretical calculations indicate that the massive pulsating DA white dwarf, BPM 37093, has a crystallized ion interior. Our estimates for the crystallized mass fraction depend on our assumption for the interior ...
    • Comparison of statistical treatments for the equation of state for core-collapse supernovae 

      Souza, Sergio Ricardo de Azevedo; Steiner, Andrew W.; Lynch, William G.; Donangelo, Raul José; Famiano, Michael A. (2009) [Artigo de periódico]
      Neutrinos emitted during the collapse, bounce, and subsequent explosion provide information about supernova dynamics. The neutrino spectra are determined by weak interactions with nuclei and nucleons in the inner regions ...
    • Effects of the quark-hadron phase transition on highly magnetized neutron stars 

      Franzon, Bruno; Gomes, Rosana de Oliveira; Schramm, Stefan (2016) [Artigo de periódico]
      The presence of quark-hadron phase transitions in neutron stars can be related to several interesting phenomena. In particular, previous calculations have shown that fast rotating neutron stars, when subjected to a ...
    • Many-body forces in the equations of state of hyperonic matter 

      Gomes, Rosana de Oliveira; Dexheimer, Veronica Antocheviz; Schramm, Stefan; Vasconcellos, Cesar Augusto Zen (2015) [Artigo de periódico]
      In this work we introduce an extended version of the formalism proposed originally by Taurines et al. that considers the effects of many-body forces simulated by nonlinear self-couplings and meson–meson interaction ...
    • The physics of crystallization from globular cluster white dwarf stars in NGC 6397 

      Winget, Donald Earl; Kepler, Souza Oliveira; Campos, Fabíola; Montgomery, Michael Houston; Girardi, Leo Alberto; Bergeron, Pierre; Williams, Kurtis (2009) [Artigo de periódico]
      We explore the physics of crystallization in the deep interiors of white dwarf (WD) stars using the color–magnitude diagram and luminosity function constructed from proper-motion cleaned Hubble Space Telescope photometry ...