307 citations · 1k across the 27 of their papers we have counts for
7 papers · 1 filter
Detached shells as tracers of AGB-ISM bow shocks
C. J. Wareing, Albert A. Zijlstra, Angela K. Speck +10
New Spitzer imaging observations have revealed the structure around the Mira variable star R Hya to be a one-sided parabolic arc 100 arcsec to the West stretching from North to Sou…
The Evolution of Central Stars of Planetary Nebulae
Falk Herwig, Bernd Freytag, Klaus Werner
The evolution of central stars of planetary nebulae can proceed in several distinct ways, either leading to H-deficiency or to H-normal surface composition. Several new simulations…
Supernova Fallback: A Possible Site for the r-Process
Chris L. Fryer, Falk Herwig, Aimee Hungerford +1
The conditions for the leading r-process site candidate, neutrino-driven winds, can not be reproduced self-consistently in current supernova models. For that reason, we investigate…
The Real-Time Evolution of Sakurai's Star (V4334 Sgr) and other (V)LTP Objects
P. A. M. van Hoof, M. Bryce, A. Evans +10
We report on the progress of our on-going campaign to monitor the evolution of the VLTP objects V4334 Sgr and V605 Aql, as well as the suspected (V)LTP object CK Vul. V4334 Sgr doe…
AGB star intershell abundances inferred from analyses of extremely hot H-deficient post-AGB stars
K. Werner, D. Jahn, T. Rauch +3
The hydrogen-deficiency in extremely hot post-AGB stars of spectral class PG1159 is probably caused by a (very) late helium-shell flash or a AGB final thermal pulse that consumes t…
NLTE spectral analysis of GW Vir pulsators
E. Reiff, D. Jahn, T. Rauch +3
GW Vir variables are the pulsating members in the spectroscopic class of PG 1159 stars. In order to understand the characteristic differences between pulsating and non-pulsating PG…