Pulsating hydrogen-deficient white dwarfs and pre-white dwarfs observed with TESS
Pulsating hydrogen-deficient white dwarfs and pre-white dwarfs observed with TESS
Context. The collection of high-quality photometric data by space telescopes, such as the completed Kepler mission and the ongoing TESS program, is revolutionizing the area of white-dwarf asteroseismology. Among the different kinds of pulsating white dwarfs, there are those that have He-rich atmospheres, and they are called DBVs or V777 …