Browsing Exact and Earth Sciences by Subject "White dwarf"

Now showing items 1-2 of 2

    • Ground-based observation of ZZ Ceti stars and the discovery of four new variables 

      Romero, Alejandra Daniela; Amaral, Larissa Antunes; Klippel, Theylor Schumacher; Sanmartim, David; Fraga, Luciano; Ourique, Gustavo; Pelisoli, Ingrid Domingos; Ramos, Gabriel Lauffer; Kepler, Souza Oliveira; Koester, Detlev (2019) [Journal article]
      We perform ground-based photometric observations of 22 DA white dwarf stars, 10 already known ZZ Cetis and 12 candidates with atmospheric parameters inside the classical instability strip. We report on the discovery of ...

    • On the evolutionary status and pulsations of the recently discovered blue large-amplitude pulsators (BLAPs) 

      Romero, Alejandra Daniela; Córsico, Alejandro Hugo; Althaus, Leandro Gabriel; Pelisoli, Ingrid Domingos; Kepler, Souza Oliveira (2018) [Journal article]
      The blue large-amplitude pulsators (BLAPs) constitute a new class of pulsating stars. They are hot stars with effective temperatures of ~30 000K and surface gravities of log g ~ 4.9, that pulsate with periods in the range ...