472 citations · 2.2k across the 47 of their papers we have counts for
11 papers · 1 filter
HD 271791: An Extreme Supernova Runaway B Star Escaping from the Galaxy
Norbert Przybilla, Maria-Fernanda Nieva, Ulrich Heber +1
Hyper-velocity stars (HVSs) were first predicted by theory to be the result of the tidal disruption of a binary system by a super-massive black hole (SMBH) that accelerates one com…
A cosmic abundance standard: chemical homogeneity of the solar neighbourhood and the ISM dust-phase composition
Norbert Przybilla, Maria-Fernanda Nieva, Keith Butler
A representative sample of unevolved early B-type stars in nearby OB associations and the field is analysed to unprecedented precision using NLTE techniques. The resulting chemical…
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…
LMC origin of the hyper-velocity star HE 0437-5439. Beyond the supermassive black hole paradigm
N. Przybilla, M. F. Nieva, U. Heber +4
Context: Hyper-velocity stars move so fast that only a supermassive black hole (SMBH) seems to be capable to accelerate them. Hence the Galactic centre (GC) is their only suggested…
Accurate Quantitative Spectroscopy of OB Stars: C and N abundances near the Main Sequence
M. F. Nieva, N. Przybilla
We present a state-of-the-art analysis technique able to simultaneously reproduce the entire H and He spectra of OB-type stars in the visual and the near-IR and to derive highly ac…
Carbon abundances of early B-type stars in the solar vicinity. Non-LTE line-formation for C II/III/IV and self-consistent atmospheric parameters
M. F. Nieva, N. Przybilla
Precise determinations of the chemical composition in early B-type stars consitute fundamental observational constraints on stellar and galactochemical evolution. Carbon is one of…