7 papers
6^Li in the atmosphere of GJ 117 Revisited
D. J. Christian, M. Mathioudakis, D. Jevremovic
Detection of 6^Li has been shown for energetic solar events, one chromospherically active binary, and several dwarf halo stars. We had previously found a 6^Li/7^Li = 0.03+/-0.01 fo…
The Dartmouth Stellar Evolution Database
Aaron Dotter, Brian Chaboyer, Darko Jevremovic +3
The ever-expanding depth and quality of photometric and spectroscopic observations of stellar populations increase the need for theoretical models in regions of age-composition par…
A Self-Consistent NLTE-Spectra Synthesis Model of FeLoBAL QSOs
Darrin Casebeer, E. Baron, Karen Leighly +2
We present detailed radiative transfer spectral synthesis models for the Iron Low Ionization Broad Absorption Line (FeLoBAL) active galactic nuclei (AGN) FIRST J121442.3+280329 and…
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…
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…
On the Determination of N and O Abundances in Low Metallicity Systems
A. Nava, D. Casebeer, R. B. C. Henry +1
We show that in order to minimize the uncertainties in the N and O abundances of low mass, low metallicity (O/H less than or equal to solar/5) emission-line galaxies, it is necessa…