2 papers
astro-ph.SR2019
Spectral analysis of the hybrid PG 1159-type central stars of the planetary nebulae Abell 43 and NGC 7094
L. Löbling, T. Rauch, M. M. Miller Bertolami +5
Stellar post asymptotic giant branch (post-AGB) evolution can be completely altered by a final thermal pulse (FTP) which may occur when the star is still leaving the AGB (AFTP), at…
astro-ph.SR2011
UV Spectroscopy of the Central Star of the Planetary Nebula A43
Ellen Ringat, Felix Friederich, Thomas Rauch +2
About 25% of all post-AGB stars are hydrogen-deficient, e.g. the PG1159 stars with a typical abundance pattern He:C:O = 33:50:17 (by mass). Only four of about 40 known PG1159 stars…