280 citations · 1.5k across the 27 of their papers we have counts for
28 papers
Age and Abundance Discrimination in Old Stellar Populations Using Mid-Ultraviolet Colors
Ben Dorman, Robert W. O'Connell, Robert T. Rood
The restframe mid-ultraviolet spectral region (2000-3200 A) is important in analyzing the stellar populations of the "red envelope" systems observed at high redshifts. Here, we exp…
Blue Horizontal Branch Stars in Old, Metal-Rich Stellar Systems
Ruth C. Peterson, Bruce W. Carney, Ben Dorman +5
Twenty years ago, Burstein et al. (1984)suggested that strong CN and Hbeta absorption meant younger ages among globular clusters in the Andromeda galaxy (M31), unless blue stars ab…
Modeling Mid-Ultraviolet Spectra. I. Temperatures of Metal-Poor Stars
Ruth C. Peterson, Ben Dorman, Robert T. Rood
Determining the properties of old stellar systems using evolutionary population synthesis requires a library of reliable model stellar fluxes. Empirical libraries are limited to sp…
Blue horizontal branch stars in metal-rich globular clusters. II. 47 Tuc and NGC 362
S. Moehler, W. B. Landsman, B. Dorman
Atmospheric parameters (effective temperature, surface gravity) and radial velocities are derived for 12 candidate blue horizontal branch (HB) stars in the globular clusters 47 Tuc…
Blue Straggler Stars: The Spectacular Population in M80
Francesco R. Ferraro, Barbara Paltrinieri, Robert T. Rood +1
Using HST-WFPC2 observations in two ultraviolet (UV) filters (F225W and F336W) of the central region of the high density Galactic Globular cluster (GGC) M80 we have identified 305…
Ultraviolet Imaging of the z=0.23 Cluster Abell 2246
Robert H. Cornett, Ben Dorman, Eric P. Smith +8
We present deep ultraviolet observations of a field containing the cluster Abell 2246 (z=0.225) which provide far-ultraviolet (FUV) images of some of the faintest galaxies yet obse…