122 citations · 683 across the 25 of their papers we have counts for
27 papers
Ensemble asteroseismology of pulsating B-type stars in NGC 6910
D. Moździerski, A. Pigulski, Z. Kołaczkowski +24
Asteroseismology offers the possibility of probing stellar interiors and testing evolutionary and seismic models. Precise photometry and spectroscopy obtained during multi-site cam…
Variable Stars in M13. III. The Cepheid Variables and their Relation to Evolutionary Changes in Metal-poor BL Her Stars
Wayne Osborn, Grzegorz Kopacki, Horace A. Smith +3
New CCD photometry has been combined with published and unpublished earlier observations to study the three Cepheid variables in M13: V1, V2 and V6. The light curve characteristics…
Full orbital solution for the binary system in the northern Galactic disc microlensing event Gaia16aye
Łukasz Wyrzykowski, P. Mróz, K. A. Rybicki +182
Gaia16aye was a binary microlensing event discovered in the direction towards the northern Galactic disc and was one of the first microlensing events detected and alerted to by the…
Variability survey in NGC 6910, the open cluster rich in Cephei-type stars
D. Moździerski, A. Pigulski, Z. Kołaczkowski +14
NGC 6910 is the northern hemisphere open cluster known to be rich in Cephei-type stars. Using four-season photometry obtained in Białków (Poland) and Xinglong (China) observato…
Constraints on the distance moduli, helium and metal abundances, and ages of globular clusters from their RR Lyrae and non-variable horizontal-branch stars. II. Multiple stellar populations in 47Tuc, M3, and M13
Pavel Denissenkov, Don A. VandenBerg, Grzegorz Kopacki +1
We present a new set of horizontal-branch (HB) models computed with the MESA stellar evolution code. The models adopt -enhanced \cite{ags09} metals mixtures and include the grav…
Wide-field Variability Survey of the Globular Cluster M79 and a New Period -- Luminosity Relation for SX Phe Stars
Grzegorz Kopacki
We present the results of a search for variable stars in a 26x39 arcmin^2 field around globular cluster M79 (NGC1904). The search was made by means of an extended version of image…