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RR Lyrae Variables in the Globular Cluster M55. The First Evidence for Non Radial Pulsations in RR Lyr Stars
A. Olech, J. Kaluzny, I. B. Thompson +3
We present the results of a photometric study of RR Lyrae variables in the field of the globular cluster M55. We have discovered nine new RR Lyrae stars, increasing the number of k…
BVRI Light Curves for 22 Type Ia Supernovae
Adam G. Riess, Robert P. Kirshner, Brian P. Schmidt +6
We present 1210 Johnson/Cousins B,V,R, and I photometric observations of 22 recent type Ia supernovae (SNe Ia): SN 1993ac, SN 1993ae, SN 1994M, SN 1994S, SN 1994T, SN 1994Q, SN 199…
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…