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The Proper Motion of NGC 6522 in Baade's Window
Donald M. Terndrup, Piotr Popowski, Andrew Gould +2
We have detected seven stars with a common proper motion which are located within 2.5 arcminutes of the globular cluster NGC 6522 in the Baade's Window field of the Galactic bulge.…
Optical Light Curves of the Type Ia Supernovae 1990N and 1991T
P. Lira, Nicholas B. Suntzeff, M. M. Phillips +27
We present UBVRI light curves for the bright Type Ia supernovae SN 1990N in NGC 4639 and SN 1991T in NGC 4527 based on photometry gathered in the course of the Calan/Tololo superno…
Discovery of Extended Blue Horizontal Branches in Two Metal-Rich Globular Clusters
R. Michael Rich, Craig Sosin, S. George Djorgovski +7
We have used WFPC2 to construct B, V color-magnitude diagrams of four metal-rich globular clusters, NGC 104 (47 Tuc), NGC 5927, NGC 6388, and NGC 6441. All four clusters have well…
High-Resolution Abundance Analysis of Very Metal-Rich Stars in the Solar Neighborhood
S. Castro, R. M. Rich, M. Grenon +2
We report detailed analysis of high-resolution spectra of nine high velocity metal-rich dwarfs in the solar neighborhood. The stars are super metal-rich and 5 of them have [Fe/H]>=…
HST Observations of High-Density Globular Clusters
G. Piotto, C. Sosin, I. R. King +6
In this paper we present preliminary results from our HST project aimed at exploring the connection between the stellar dynamics and stellar evolution in the cores of high-density…
Globular Clusters Color-Magnitude Diagrams with HST
C. Sosin, G. Piotto, S. G. Djorgovski +6
In this paper we present the 13 B and V color-magnitude diagrams discussed by Piotto et al. in the same Procedings. The data have been collected with the WFPC2 camera on HST. We em…