117 citations · 875 across the 22 of their papers we have counts for
16 papers · 1 filter
Stellar Population Models and Individual Element Abundances II: Stellar Spectra and Integrated Light Models
H. -c. Lee, G. Worthey, A. Dotter +7
The first paper in this series explored the effects of altering the chemical mixture of the stellar population on an element by element basis on stellar evolutionary tracks and iso…
Deep Mixing and Metallicity: Carbon Depletion in Globular Cluster Giants
Sarah L. Martell, Graeme H. Smith, Michael M. Briley
We present the results of an observational study of the efficiency of deep mixing in globular cluster red giants as a function of stellar metallicity. We determine [C/Fe] abundance…
An Improved Bandstrength Index for the CH G Band of Globular Cluster Giants
Sarah L. Martell, Graeme H. Smith, Michael M. Briley
Spectral indices are useful tools for quantifying the strengths of features in moderate-resolution spectra and relating them to intrinsic stellar parameters. This paper focuses on…
CN Bimodality at Low Metallicity: The Globular Cluster M53
Sarah L. Martell, Graeme H. Smith, Michael M. Briley
We present low resolution UV-blue spectroscopic observations of red giant stars in the globular cluster M53 ([Fe/H]=-1.84), obtained to study primordial abundance variations and de…
The New Standard Stellar Population Models (NSSPM) -- The Prologue
Hyun-chul Lee, Guy Worthey, Scott C. Trager +7
We are developing a brand new stellar population models with flexible chemistry (isochrones plus stellar colors and spectra) in order to set a new standard of completeness and exce…
C and N Abundances in Stars At the Base of the Red Giant Branch in M15
Judith G. Cohen, Michael M. Briley, Peter B. Stetson
We present an analysis of a large sample of moderate resolution Keck LRIS spectra of subgiants and stars at the base of the RGB in M15, most within the range 16.5 < V < 19.5 (1.2 <…