Navegação por Autor "Friaça, Amâncio César Santos"
Resultados 1-4 de 4
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Chrono-chemodynamical analysis of the globular cluster NGC 6355 : looking for the fundamental bricks of the Bulge
Souza, Stefano O.; Ernandes, Heitor; Valentini, Marica; Barbuy, Beatriz; Chiappini, C.C.M.; Pérez Villegas, Maria de Los Angeles; Ortolani, Sergio; Friaça, Amâncio César Santos; Queiroz, Anna Bárbara de Andrade; Bica, Eduardo Luiz Damiani (2023) [Artigo de periódico]The information on Galactic assembly time is imprinted on the chemodynamics of globular clusters. This makes them important probes that help us to understand the formation and evolution of the Milky Way. Discerning between ... -
Iron-peak elements Sc, V, Mn, Cu, and Zn in Galactic bulge globular clusters
Ernandes, Heitor; Barbuy, Beatriz; Alves-Brito, Alan; Friaça, Amâncio César Santos; Mello Junior, Cesar Henrique Siqueira (2018) [Artigo de periódico]Aims. Globular clusters are tracers of the history of star formation and chemical enrichment in the early Galaxy. Their abundance pattern can help understanding their chemical enrichment processes. In particular, the ... -
Profile comparison of the 6–9 μm polycyclic aromatic hydrocarbon bands in starburst-dominated galaxies
Canelo, Carla Martinez; Sales, Dinalva Aires de; Friaça, Amâncio César Santos; Pastoriza, Miriani Griselda; Menéndez-Delmestre, Karín (2021) [Artigo de periódico]Polycyclic aromatic hydrocarbons (PAHs) are of great astrochemical and astrobiological interest due to their potential to form prebiotic molecules. We analyse the 7.7 and 8.6 μm PAH bands in 126 pre-dominantly starburst-dominated ... -
Variations in the 6.2 μm emission profile in starburst-dominated galaxies : a signature of polycyclic aromatic nitrogen heterocycles (PANHs)?
Canelo, Carla Martinez; Friaça, Amâncio César Santos; Sales, Dinalva Aires de; Pastoriza, Miriani Griselda; Dutra, Daniel Ruschel (2018) [Artigo de periódico]Analyses of the polycyclic aromatic hydrocarbon (PAH) feature profiles, especially the 6.2 μm feature, could indicate the presence of nitrogen incorporated in their aromatic rings. In thiswork, 155 predominantly ...