Astrophysical: PG 1159 stars

  • Publication
    The GW Vir Instability Strip in Light of New Observations of PG 1159 Stars: Discovery of Pulsations in the Central Star of A72 and Variability of RX J0122.9-7521

    We present the results of new time-series photometric observations of 29 pre-white dwarf stars of PG 1159 spectral type, carried out in the years 2014-2022. For...

  • Publication
    The Missing Link? Discovery of Pulsations in the Nitrogen-rich PG 1159 Star PG 1144+005

    Up to 98% of all single stars will eventually become white dwarfs-stars that link the history and future evolution of the Galaxy, and whose previous evolution...