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The Gaia–ESO Survey: Carbon Abundance in the Galactic Thin and Thick Disks
(The American Astronomical Society, 2020)
This paper focuses on carbon, which is one of the most abundant elements in the universe and is of high importance in the field of nucleosynthesis and galactic and stellar evolution. The origin of carbon and the relative ...
An Investigation of the Use of Synthetic Spectra to Find the Ages of Stellar Clusters
(IOP Publishing, 2013-11)
The utility of stellar cluster aging methods based on integrated spectra is clearly demonstrated by its extensive use by researchers for decades. However, few studies have determined the accuracy of such methods using a ...
The stellar metallicity gradients in galaxy discs in a cosmological scenario
(2016)
Context. The stellar metallicity gradients of disc galaxies provide information on disc assembly, star formation processes, and chemical evolution. They also might store information on dynamical processes that could affect ...
Unresolved versus resolved: testing the validity of young simple stellar population models with VLT/MUSE observations of NGC 3603
(EDP Sciences, 2016)
Context. Stellar populations are the building blocks of galaxies, including the Milky Way. The majority, if not all, extragalactic studies are entangled with the use of stellar population models given the unresolved nature ...
Análise de populações estelares e subestruturas em aglomerados de galáxias
(Universidade Federal de Santa MariaBRFísicaUFSMPrograma de Pós-Graduação em Física, 2015-08-25)
In this work, we investigated differences between stellar populations of galaxies that are part
of a cluster with and without substructures. We used optical spectra obtained from Sloan Digital
Sky Servey III DR10 for the ...
Mapping the stellar age of the Milky Way bulge with the VVV I. The method
(2019)
Context. Recent observational programs are providing a global view of the Milky Way bulge that serves as a template for detailed comparison with models and extragalactic bulges. A number of surveys (VVV, GIBS, GES, ARGOS, ...
A cold stellar stream in Pegasus
(2019-01-01)
We report the serendipitous discovery of a stellar stream in the constellation Pegasus in the south Galactic hemisphere. The stellar stream was detected using the SDSS Data Release 14 by means of a matched filter in the ...