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Cluster AgeS Experiment: The Age and Distance of the Globular Cluster omega Centauri Determined from Observations of the Eclipsing Binary OGLEGC17
I. B. Thompson, J. Kaluzny, W. Pych +5
We use masses, radii, and luminosities of the detached eclipsing binary OGLEGC17 derived from photometric and spectroscopic observations to calculate the age and distance of the gl…
Image-Subtraction Photometry of Variable Stars in the Field of the Globular Cluster NGC 6934
J. Kaluzny, A. Olech, K. Z. Stanek
(Abridged) We present CCD BVI photometry of 85 variable stars from the field of the globular cluster NGC 6934. The photometry was obtained with the image subtraction package ISIS.…
Clusters AgeS Experiment. Hot subdwarfs and luminous white dwarf candidates in the field of the globular cluster M4
B. J. Mochejska, J. Kaluzny, I. Thompson +1
We present UBV color magnitude diagrams (CMDs) for the globular cluster M4. The CMDs show a sequence of four luminous blue stars (V<20, U-V<-0.6) which appear to be cluster hot sub…
Clusters AgeS Experiment. RR Lyr Variables in the Globular Cluster NGC 6362
A. Olech, J. Kaluzny, I. B. Thompson +3
We present V and B-band CCD photometry of 35 RR Lyr stars in the southern hemisphere globular cluster NGC 6362. Fourier decomposition of the light curves was used to estimate the b…
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…