17 papers
The IMF Long Ago and Far Away: Faint Stars in the Ursa Minor dSph Galaxy
Rosemary F. G. Wyse
The dwarf spheroidal galaxy in Ursa Minor is apparently dark-matter dominated, and is of very low surface brightness, with total luminosity only equal to that of a globular cluster…
Chemical Abundances and Milky Way Formation
Gerry Gilmore, Rosemary F. G. Wyse
Stellar chemical element ratios have well-defined systematic trends as a function of abundance, with an excellent correlation of these trends with stellar populations defined kinem…
Galactic Structure
Rosemary F. G. Wyse
Our Milky Way Galaxy is a typical large spiral galaxy, representative of the most common morphological type in the local Universe. We can determine the properties of individual sta…
M31, M33 and the Milky Way: Similarities and Differences
Rosemary F. G. Wyse
The large galaxies in the Local Group, while all disk galaxies, have diverse stellar populations. A better understanding of these differences, and a physical understanding of the c…
Populations of Dwarfs in Clusters of Galaxies: Environmental Connections
John S. Gallagher, Christopher J. Conselice, Rosemary F. G. Wyse
Despite their apparent fragile appearance, dwarf spheroidals are the most common galaxy type in clusters. In this paper we consider some of the issues associated with two major mod…
The Thick Disk-Halo Interface
Gerard Gilmore, Rosemary F. G. Wyse
The star formation history of a galaxy, explicitely here our Milky Way Galaxy, where the most detailed information is attainable, is the convolution of two functions. One function…