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Star Clusters in Virgo and Fornax Dwarf Irregular Galaxies
Anil Seth, Knut Olsen, Bryan Miller +2
We present the results of a search for clusters in dwarf irregular galaxies in the Virgo and Fornax Cluster using HST WFPC2 snapshot data. The galaxy sample includes 28 galaxies, 1…
A New Non-Parametric Approach to Galaxy Morphological Classification
Jennifer M. Lotz, Joel Primack, Piero Madau
We present two new non-parametric methods for quantifying galaxy morphology: the relative distribution of the galaxy pixel flux values (the Gini coefficient or G) and the second-or…
Evolution in the Colors of Lyman-Break Galaxies from Z~4 to Z~3
Casey Papovich, Mark Dickinson, Henry C. Ferguson +11
The integrated colors of distant galaxies provide a means for interpreting the properties of their stellar content. Here, we use rest-frame UV-to-optical colors to constrain the sp…
The Redshift Distribution of Near-IR Selected Galaxies in the Great Observatories Origins Deep Survey as a Test of Galaxy Formation Scenarios
Rachel S. Somerville, Leonidas A. Moustakas, Bahram Mobasher +11
The redshift distribution of near-IR selected galaxies is often used to attempt to discriminate between the classical view of galaxy formation, in which present-day luminous galaxi…
The z ~ 4 Lyman Break Galaxies: Colors and Theoretical Predictions
Rafal Idzi, Rachel Somerville, Casey Papovich +4
We investigate several fundamental properties of z ~ 4 Lyman-break galaxies by comparing observations with the predictions of a semi-analytic model based on the Cold Dark Matter th…
The Star-Forming Dwarf Galaxy Populations of two z ~ 0.4 Clusters: MS1512.4+3647 and Abell 851
J. M. Lotz, C. L. Martin, H. C. Ferguson
We present the results of a deep narrow-band [OII] 3727 Åemission-line search for faint ( 27), star-forming galaxies in the field of the MS1512.4+3647 cluster. We fin…