13 papers
Cluster AgeS Experiment (CASE): Dwarf Novae and a Probable Microlensing Event in the Globular Cluster M22
P. Pietrukowicz, J. Kaluzny, I. B. Thompson +4
We report the identification of a new cataclysmic variable (denoted as CV2) and a probable microlensing event in the field of the globular cluster M22. Two outbursts were observed…
Photometry and Spectroscopy of Eclipsing Binaries in omega Centauri
J. Kaluzny, I. Thompson, W. Krzeminski +3
Detached eclipsing double line spectroscopic binaries are accurate distance indicators. They can be used for the direct determination of distances to globular clusters in which suc…
RR Lyrae Variables in the Globular Cluster M5
J. Kaluzny, A. Olech, I. Thompson +3
We present V-band CCD photometry of 65 RR Lyr variables from the globular cluster M5. We have estimated the basic physical parameters for 16 RRc stars and 26 RRab stars using a Fou…
A photometric survey for variable stars in the globular cluster M5
J. Kaluzny, I. Thompson, W. Krzeminski +1
We present the results of a photometric survey for variable stars in the nearby globular cluster M5. A 14.8x22.8 arcmin^2 field centered on the cluster was monitored for a total of…
BVI CCD Photometry of the Globular Cluster 47 Tuc
J. Kaluzny, A. Wysocka, K. Z. Stanek +1
We present photometry for about 16000 stars from a 220 arcmin field centered 8 arcmin east of the center of 47 Tuc. We have identified eight likely blue stragglers loca…
The Optical Gravitational Lensing Experiment. The Catalog of Periodic Variable Stars in the Galactic Bulge. V. Periodic Variables in Fields: MM5-A, MM5-B, MM7-A and MM7-B
A. Udalski, A. Olech, M. Szymanski +5
We present the fifth part of the OGLE Catalog of Periodic Variable Stars in the Galactic bulge. 574 variable stars: 44 pulsating, 369 eclipsing and 161 miscellaneous type were dete…