4 papers
A Census of Chemically Peculiar Stars in Stellar Associations
Lukas KueÃ, Ernst Paunzen
The pre-main-sequence evolution of the chemically peculiar (CP) stars on the upper main sequence is still a vast mystery and not well understood. Our analysis of young associations…
The Status of the Astrophysical Parameters of Upper Main Sequence Stars
Lukas KueÃ, Ernst Paunzen
Calibrating the ages, masses, and radii of stars on the upper main sequence depends heavily on accurate measurements of the effective temperature () and surface gra…
Lightcurves of stars in the Chamaeleon I Association
K. Neumannová, L. KueÃ, E. Paunzen +1
Star-forming regions are essential for studying very young stellar objects of various masses. They still contain a significant amount of dust and gas. We present a study of light c…
Symbiotic stars in Galactic open clusters
Lukas KueÃ, Ernst Paunzen
The age determination of symbiotic stars is essential to put further constraints on models explaining these binary systems. In the Galactic field, this is especially problematic be…