244 citations · 1.3k across the 24 of their papers we have counts for
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The Luminosity Function of Nearby Galaxy Clusters II: Redshifts and Luminosity Function for Galaxies in the Region of the Centaurus Cluster
K. Chiboucas, M. Mateo
We acquired spectra for a random sample of galaxies within a 0.83 square degree region centered on the core of the Centaurus cluster. Radial velocities were obtained for 225 galaxi…
Proper Motions of Dwarf Spheroidal Galaxies from Hubble Space Telescope Imaging. III: Measurement for Ursa Minor
S. Piatek, C. Pryor, P. Bristow +5
This article presents a measurement of the proper motion of the Ursa Minor dwarf spheroidal galaxy determined from images taken with the Hubble Space Telescope in two distinct fiel…
Proper Motions of Dwarf Spheroidal Galaxies from Hubble Space Telescope Imaging. I: Method and a Preliminary Measurement for Fornax
S. Piatek, C. Pryor, E. W. Olszewski +6
This article presents and discusses a method for measuring the proper motions of the Galactic dwarf spheroidal galaxies using images taken with the Hubble Space Telescope. The meth…
Variable Stars in Leo A: RR Lyraes, Short-period Cepheids, and Implications on Stellar Content
A. E. Dolphin, A. Saha, J. Claver +6
We present the results of a search for short-period variable stars in Leo A. We have found 92 candidate variables, including eight candidate RR Lyrae stars. From the RR Lyraes, we…
Deep HST Imaging of Sextans A I. The Spatially Resolved Recent Star Formation History
R. C. Dohm-Palmer, E. D. Skillman, M. Mateo +5
We have measured stellar photometry from deep Cycle 7 Hubble Space Telescope/WFPC2 imaging of the dwarf irregular galaxy Sextans A. The imaging was taken in three filters: F555W ($…
Old Stellar Populations of the Small Magellanic Cloud
A. E. Dolphin, A. R. Walker, P. W. Hodge +4
We present WFPC2 and ground-based VI photometry of NGC 121 and a nearby field in the outer SMC. For NGC 121, we measure a true distance modulus of (m-M)0 = 18.96 +/- 0.04 (distance…