41 citations · 46 across the 5 of their papers we have counts for
5 papers · 1 filter
HVS7: a chemically peculiar hyper-velocity star
N. Przybilla, M. F. Nieva, A. Tillich +3
Context: Hyper-velocity stars are suggested to originate from the dynamical interaction of binary stars with the supermassive black hole in the Galactic centre (GC), which accelera…
Extragalactic Stellar Astronomy with Blue Supergiants
N. Przybilla, F. Bresolin, K. Butler +3
The present generation of large telescopes facilitates spectroscopy of blue supergiants in galaxies out to distances beyond the Local Group. Recent developments in NLTE spectrum sy…
The subdwarf B + white dwarf binary KPD 1930+2752 - a Supernova Type Ia progenitor candidate
S. Geier, S. Nesslinger, U. Heber +3
The nature of the progenitors of type Ia supernovae is still under controversial debate. KPD 1930+2752 is one of the best SN Ia progenitor candidates known today. The object is a d…
Non-LTE line-formation for CNO
Norbert Przybilla, Rolf-Peter Kudritzki, Keith Butler +1
Accurate atomic data have become available in the recent past due to the demands of astrophysics and fusion research. We report on the impact of such data on non-LTE line-formation…
New Nitrogen and Carbon in AF-supergiants
Kim A. Venn, Norbert Przybilla
The AF-supergiants in the Galaxy and the SMC allow us to examine predictions from evolution models through their CNO abundances. In these proceedings, we recalculate the NLTE nitro…