681 citations · 2.7k across the 54 of their papers we have counts for
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Taking the Measure of the Universe: Precision Astrometry with SIM PlanetQuest
Stephen C. Unwin, Michael Shao, Angelle M. Tanner +33
Precision astrometry at microarcsecond accuracy has application to a wide range of astrophysical problems. This paper is a study of the science questions that can be addressed usin…
Stellar Population Models and Individual Element Abundances I: Sensitivity of Stellar Evolution Models
A. Dotter, B. Chaboyer, J. W. Ferguson +4
Integrated light from distant galaxies is often compared to stellar population models via the equivalent widths of spectral features--spectral indices--whose strengths rely on the…
Keck spectroscopy and Spitzer Space Telescope analysis of the outer disk of the Triangulum Spiral Galaxy M33
David L. Block, Francoise Combes, Ivanio Puerari +11
In an earlier study of the spiral galaxy M33, we photometrically identified arcs or outer spiral arms of intermediate age (0.6 Gyr - 2 Gyr) carbon stars precisely at the commenceme…
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…