65 citations · 67 across the 4 of their papers we have counts for
1 paper · 1 filter
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…