6 papers · 1 filter
Intergalactic Globular Clusters
Michael J. West, Patrick Cote, Henry C. Ferguson +5
We confirm and extend our previous detection of a population of intergalactic globular clusters in Abell 1185, and report the first discovery of an intergalactic globular cluster i…
Using M32 to Study Rapid Phases of Stellar Evolution
Thomas M. Brown, Henry C. Ferguson, Allen V. Sweigart +2
The compact elliptical galaxy M32 offers a unique testing ground for theories of stellar evolution. Because of its proximity, solar-blind UV observations can resolve the hot evolve…
Mid-UV Determination of Elliptical Galaxy Abundances and Ages
Jennifer M. Lotz, Henry C. Ferguson, Ralph C. Bohlin
We investigate the effects of abundance and age on the mid-UV spectra and Mg_{2} strengths of stellar populations using simple population synthesis models. These models are used to…
An Extremely Red r^{1/4} Galaxy in the Test Image of the Hubble Deep Field South
T. Treu, M. Stiavelli, A. R. Walker +14
We report the serendipitous discovery of an extremely red object in the Hubble Deep Field South (HDFS) Test NICMOS (Near Infrared Camera and Multi Object Spectrograph) field of vie…
Globular Clusters in Dwarf Elliptical Galaxies
B. W. Miller, H. C. Ferguson, J. Lotz +2
Globular clusters (GCs) provide one way of determining when the most important periods of star formation in dwarf elliptical (dE) galaxies occurred. Thus, they are also useful for…
Far-UV Line Strengths in Elliptical Galaxies
H. C. Ferguson, T. M. Brown, A. F. Davidsen
Much of the far-UV emission from elliptical galaxies is thought to arise from extreme horizontal branch stars and related objects. Only about 10% of the stellar population needs to…