237 citations · 835 across the 25 of their papers we have counts for
15 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…
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…
The Effect Of Alpha-Element Enhancement On Surface Brightness Fluctuation Magnitudes And Broad-Band Colors
Hyun-chul Lee, Guy Worthey, John P. Blakeslee
We present the effects due to alpha-element enhancement on surface brightness fluctuation magnitudes and broad-band colors in order to investigate the calibration zero-point. We st…
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…
An Empirical UBVRIJHK Color-Temperature Calibration for Stars
G. Worthey, H. -c. Lee
A collection of Johnson/Cousins photometry for stars with known [Fe/H] is used to generate color-color relations that include the abundance dependence. Literature temperature and b…
A New delta N Formalism for Multi-Component Inflation
Hyun-Chul Lee, Misao Sasaki, Ewan D. Stewart +2
The delta N formula that relates the final curvature perturbation on comoving slices to the inflaton perturbation on flat slices after horizon crossing is a powerful and intuitive…