87 citations · 543 across the 55 of their papers we have counts for
6 papers · 1 filter
Double mode RR Lyrae stars in Omega Centauri
A. Olech, P. Moskalik
Aim: The aim of this work was to search for double mode pulsators among RR Lyr variables of globular cluster Omega Cen. Methods: We conducted a systematic frequency analysis of CAS…
Curious Variables Experiment (CURVE). CCD photometry of active dwarf nova DI UMa
A. Rutkowski, A. Olech, M. Wiśniewski +3
We report an analysis of photometric behaviour of DI UMa, an extremely active dwarf nova. The observational campaign (completed in 2007) covers five superoutbursts and four normal…
Multiperiodic RR Lyrae Stars in Omega Centauri
P. Moskalik, A. Olech
We have conducted a systematic search for multiperiodic pulsations in the RR Lyrae-type stars of the galactic globular cluster Omega Cen. Secondary periodicities close to the prima…
Curious Variables Experiment (CURVE). RZ LMi - the most active SU UMa star
A. Olech, M. Wisniewski, K. Zloczewski +3
We report extensive photometry of the frequently outbursting dwarf nova RZ Leo Minoris. During two seasons of observations we detected 12 superoutbursts and 7 normal outbursts. The…
CURiuos Variables Experiment (CURVE): Variable Stars in the metal-poor Globular Cluster M56
P. Pietrukowicz, A. Olech, P. Kedzierski +3
We have surveyed a 6.5' x 6.5' field centered on the globular cluster M56 (NGC 6779) in search for variable stars. We have detected seven variables, among which two objects are new…
Curious Variables Experiment (CURVE). Three Periodicities of BF Ara
A. Olech, A. Rutkowski, A. Schwarzenberg-Czerny
We report CCD photometry of the dwarf nova BF Ara throughout fifteen consecutive nights in quiescence. Light curve in this interval is dominated by a large amplitude around 0.8 mag…