681 citations · 4.8k across the 77 of their papers we have counts for
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Stellar abundances of early-type galaxies
S. C. Trager
It is currently impossible to determine the abundances of stellar populations star-by-star in dense stellar systems more distant than a few megaparsecs. Therefore, methods to analy…
On the interpretation of age and chemical composition of composite stellar populations determined with line-strength indices
Paolo Serra, Scott C. Trager
We study the simple-stellar-population-equivalent (SSP-equivalent) age and chemical composition measured from the Lick/IDS line-strength indices of composite stellar populations (C…
On the Age and Metallicity Estimation of Spiral Galaxies Using Optical and Near-Infrared Photometry
Hyun-chul Lee, Guy Worthey, Scott C. Trager +1
In integrated-light, some color-color diagrams that use optical and near-infrared photometry show surprisingly orthogonal grids as age and metallicity are varied, and they are comi…
IC 4200: a gas-rich early-type galaxy formed via a major merger
P. Serra, S. C. Trager, J. M. van der Hulst +2
We present the result of radio and optical observations of the S0 galaxy IC 4200. We find that the galaxy hosts 8.5 billion solar masses of HI rotating on a ~90 deg warped disk ext…