Navegação por Assunto "Abundances"
Resultados 1-4 de 4
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Análise espectroscópica de estrelas gigantes vermelhas em aglomerados abertos da galáxia
(2021) [Dissertação]Os aglomerados estelares são essenciais para estudar a idade, a distribuição espacial, a dinâmica, a cinemática e a composição química de diferentes populações estelares em diferentes componentes Galácticas. Assim, usamos ... -
The Gaia-ESO survey : radial metallicity gradients and age-metallicity relation of stars in the Milky Way disk
(2014) [Artigo de periódico]We study the relationship between age, metallicity, and α-enhancement of FGK stars in the Galactic disk. The results are based upon the analysis of high-resolution UVES spectra from the Gaia-ESO large stellar survey. We ... -
The impact of the uncertainties in the 12C(α, γ ) 16O reaction rate on the evolution of low- to intermediate-mass stars
(2022) [Artigo de periódico]One of the largest uncertainties in stellar evolutionary computations is the accuracy of the considered reaction rates. The 12C(α, γ ) 16O reaction is particularly important for the study of low- and intermediate-mass stars ... -
VLT-UVES spectroscopy of a bulge giant magnified through microlensing : EROS-BLG-2000-5
(2002) [Artigo de periódico]High resolution spectra of a magnified bulge star were obtained at the 8 m Kueyen VLT-UT2 telescope with the UVES spectrograph. The source is a bulge giant of baseline magnitude VEROS = 18.4, magnified to V ≈ 18.0. These ...