34 citations · 83 across the 14 of their papers we have counts for
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Three new hot hydrogen-deficient pre-white dwarfs
Klaus Werner, Nicole Reindl, Max Pritzkuleit +1
We have detected three new hydrogen-deficient (H < 0.001 mass fraction) pre-white dwarfs (WDs) with helium-dominated atmospheres. The first object is a relatively cool PG1159 star…
An analysis of spectroscopic, seismological, astrometric, and photometric masses of pulsating white dwarf stars
Leila M. Calcaferro, Alejandro H. Córsico, Murat Uzundag +3
A central challenge in the field of stellar astrophysics lies in accurately determining the mass of isolated stars. However, for pulsating white dwarf (WD) stars, the task becomes…
Spectroscopic survey of faint planetary-nebula nuclei VI. Seventeen hydrogen-rich central stars
Nicole Reindl, Howard E. Bond, Klaus Werner +1
We present an analysis of 17 H-rich central stars of planetary nebulae (PNe) observed in our spectroscopic survey of nuclei of faint Galactic PNe carried out at the 10-m Hobby-Eber…
Spectroscopic survey of faint planetary-nebula nuclei III. A [WC] central star and two new PG1159 nuclei
Klaus Werner, Helge Todt, Howard E. Bond +1
We present spectroscopy of three hydrogen-deficient central stars of faint planetary nebulae, with effective temperatures () in excess of 100,000 K. The nucleus of…
Pulsating hydrogen-deficient white dwarfs and pre-white dwarfs observed with TESS VI. Asteroseismology of the GW Vir-type central star of the Planetary Nebula NGC 246
Leila M. Calcaferro, Paulina Sowicka, Murat Uzundag +7
Significant advances have been achieved through the latest improvements in the photometric observations accomplished by the recent space missions, substantially boosting the study…