Publications (5)
Lithium in V505 Per
G. Koenigsberger, W. Schmutz, C. Pilachowski +3
We determine the surface lithium abundance of the eclipsing binary components in V 505 Per (HIP 10961), A(Li)=2.65+/-0.07 and 2.35+/-0.1, which supports the rather unexpected concl…
Is the Young Star RZ Piscium Consuming Its Own (Planetary) Offspring?
K. M. Punzi, J. H. Kastner, C. Melis +4
The erratically variable star RZ Piscium (RZ Psc) displays extreme optical dropout events and strikingly large excess infrared emission. To ascertain the evolutionary status of thi…
What is the difference? Blazhko and non-Blazhko RRab stars and the special case of V123 in M3
J. Jurcsik, P. Smitola, G. Hajdu +10
In an extended photometric campaign of RR Lyrae variables of the globular cluster M3, an aberrant light-curve, non-Blazhko RRab star, V123, was detected. Based on its brightness, c…
The Unique Na:O Abundance Distribution in NGC 6791: The First Open(?) Cluster with Multiple Populations
D. Geisler, S. Villanova, G. Carraro +4
Almost all globular clusters investigated exhibit a spread in their light element abundances, the most studied being a Na:O anticorrelation. In contrast, open clusters show a homog…
Photometric and radial-velocity time-series of RR Lyrae stars in M3: analysis of single-mode variables
J. Jurcsik, P. Smitola, G. Hajdu +18
We present the first simultaneous photometric and spectroscopic investigation of a large set of RR Lyrae variables in a globular cluster. The radial-velocity data presented compris…