Publications (5)
CNO Abundances of BA-Type Supergiants
M. Firnstein, N. Przybilla
Massive BA-type supergiants are among the visually brightest stars in galaxies with active star formation. As such they are versatile tools for studies of stellar and galactochemic…
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…
Quantitative spectroscopy of Galactic BA-type supergiants. I. Atmospheric parameters
M. Firnstein, N. Przybilla
BA-type supergiants show a high potential as versatile indicators for modern astronomy. The focus here is on the determination of accurate and precise atmospheric parameters for a…
Mixing of CNO-cycled matter in massive stars
N. Przybilla, M. Firnstein, M. F. Nieva +2
Aims: We test predictions of evolution models on mixing of CNO-cycled products in massive stars from a fundamental perspective. Relative changes within the theoretical C:N:O abunda…
CRIRES high-resolution near-infrared spectroscopy of diffuse interstellar band profiles. Detection of 12 new DIBs in the YJ band and the introduction of a combined ISM sight line and stellar analysis approach
A. Ebenbichler, A. Postel, N. Przybilla +7
A high spectral resolution investigation of diffuse interstellar bands (DIBs) in the near-infrared ( band) is conducted to test new methods, to confirm and improve existing par…