Program: GN-2010B-Q-107
| Title: | Chemical composition of the Local Group spheroidal dwarf NGC 205 |
| PI: | Cintia Quireza |
| Co-I(s): | Denise R. Goncalves, Laura Magrini |
Abstract
We follow a spectroscopic study of strong emission-line populations of dwarf galaxies in the Local Group. In this project we propose spectroscopic observations with the Gemini Multi-Object Spectrographs (GMOS), of planetary nebulae in the dwarf spheroidal galaxy NGC 205, one of the companions of the Andromeda galaxy (M 31). Our main goal is to derive their chemical abundances, which represents the chemical composition of NGC 205 interstellar medium at the time of the planetary nebulae progenitors were born, considering elements that are not processed by stellar nucleosynthesis. This information will allow us to study the chemical evolution of this galaxy and compare it with the chemical evolution history of its sister galaxy, NGC 147 and NGC 185, already observed with Gemini.
Publications using this program's data
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[data]
[ADS] Discovery of true, likely and possible symbiotic stars in the dwarf spheroidal NGC 205
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[data]
[ADS] A study of extragalactic planetary nebulae populations based on spectroscopy. I. Data compilation and first findings
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[data]
[ADS] Planetary nebulae: the universal mass-metallicity relation for Local Group dwarf galaxies and the chemistry of NGC 205