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The Butcher-Oemler Effect at Low Redshift: Spectroscopy of Five Nearby Clusters of Galaxies
Nelson Caldwell, James Rose
We present multi-fiber spectroscopy and broadband imaging of early-type galaxies in five nearby rich clusters of galaxies. The main purpose was to look for ``abnormal'' spectrum ga…
The Dwarf Spheroidal Companions to M31: WFPC2 Observations of Andromeda I
G. S. Da Costa, T. E. Armandroff, Nelson Caldwell +1
Images have been obtained with the Hubble Space Telescope WFPC2 camera of Andromeda I, a dwarf spheroidal (dSph) galaxy that lies in the outer halo of M31. The resulting color-magn…
BVRI Light Curves for 29 Type Ia Supernovae
Mario Hamuy, M. M. Phillips, Nicholas B. Suntzeff +2
BVRI light curves are presented for 27 Type Ia supernovae discovered during the course of the Calan/Tololo Survey and for two other SNe Ia observed during the same period. Estimate…