59 citations · 215 across the 8 of their papers we have counts for
5 papers · 1 filter
Individual Alpha Elements, C, N, and Ba in Early Type Galaxies
Guy Worthey, Baitian Tang, Jedidiah Serven
Spectral data on early type galaxies is analyzed for chemical abundance with an emphasis on obtaining detailed abundances for the elements O and Si in addition to C, N, Na, Mg, Ca,…
Ca, Fe, and Mg Trends Among and Within Elliptical Galaxies
Guy Worthey, Briana A. Ingermann, Jedidiah Serven
In a sample of elliptical galaxies that span a large range of mass, a previously unused Ca index, CaHK, shows that [Ca/Fe] and [Ca/Mg] systematically decrease with increasing ellip…
Individual Elemental Abundances in Elliptical Galaxies
Jedidiah Serven
Using synthetic spectra to gauge the observational consequences of altering the abundance of individual elements, I determine the observability of new Lick IDS style indices design…
NH and Mg Index Trends in Elliptical Galaxies
Jedidiah Serven, Guy Worthey, Elisa Toloba +1
We examine the spectrum in the vicinity of the NH3360 index of Davidge & Clark (1994), which was defined to measure the NH absorption around 3360 Åand which shows almost no trend w…
Emission Corrections for Hydrogen Features of the Graves et. al 2007 Sloan Digital Sky Survey Averages of Early Type, Non-liner Galaxies
Jedidiah Serven, Guy Worthey
For purposes of stellar population analysis, emission corrections for Balmer series indices on the Lick index system in Sloan Digital Sky Survey (SDSS) stacked quiescent galaxy spe…