Individual Elemental Abundances in Elliptical Galaxies

Individual Elemental Abundances in Elliptical Galaxies

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 designed to target individual elements. Then using these new indices and single stellar population models, I investigate a new...

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Veröffentlicht in:arXiv.org 2010-09
1. Verfasser: Serven, Jedidiah
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Sprache:eng
Schlagworte:
Abundance
Astronomical models
Balmer series
Elliptical galaxies
Emission analysis
Galactic clusters
Observability (systems)
Sky surveys (astronomy)
Trends
Virgo galactic cluster
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description 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 designed to target individual elements. Then using these new indices and single stellar population models, I investigate a new method to determine Balmer series emission in a Sloan Digital Sky Surveys grand average of quiescent galaxies. I also investigate the effects of an old metal-poor stellar population on the near ultra violet spectrum through the use of these new indices and find that the presence of a small old metal-poor population accounts for discrepancies observed between index trends in the near UV and optical spectral regimes. Index trends for 74 indices and three data sets are presented and discussed. Finally, I determine the near nuclear line-strength gradients of 18 red sequence elliptical Virgo cluster galaxies for 74 indices.
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subjects Abundance
Astronomical models
Balmer series
Elliptical galaxies
Emission analysis
Galactic clusters
Observability (systems)
Sky surveys (astronomy)
Trends
Virgo galactic cluster
title Individual Elemental Abundances in Elliptical Galaxies
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