25 citations · 56 across the 4 of their papers we have counts for
5 papers
Deep Hubble Space Telescope Imaging of Globular Clusters Towards the Galactic Bulge: Observations, Data Reduction and Color-Magnitude Diagrams
Roger E. Cohen, Francesco Mauro, Javier Alonso-García +5
The Galactic globular clusters (GGCs) located towards the Galactic bulge have generally been excluded from large-scale photometric GGC surveys due to severe total and differential…
HCN hyperfine ratio analysis of massive molecular clumps
W. J. Schap, P. J. Barnes, A. Ordonez +3
We report a new analysis protocol for HCN hyperfine data, based on the PYSPECKIT package, and results of using this new protocol to analyse a sample area of seven massive molecular…
The pulsating variable star population in DDO210
Antonio J. Ordoñez, Ata Sarajedini
We have probed the pulsating variable star content of the isolated Local Group dwarf galaxy, DDO210 (Aquarius), using archival Advanced Camera for Surveys/ $Telesco…
Population Effects on the Metallicity Distribution Function Derived From the Red Giant Branch
Antonio J. Ordoñez, Ata Sarajedini
We have tested the reliability of the red giant branch (RGB) as a metallicity indicator accounting for observational errors as well as the complexity of star formation histories (S…
The RR Lyrae Variable Population in the Phoenix Dwarf Galaxy
Antonio J. Ordoñez, Soung-Chul Yang, Ata Sarajedini
We present the first detailed study of the RR Lyrae variable population in the Local Group dSph/dIrr transition galaxy, Phoenix, using previously obtained HST/WFPC2 observations of…