Navegação Ciências Exatas e da Terra por Autor "Guiglion, Guillaume"

Resultados 1-2 de 2

    • Dissecting stellar chemical abundance space with t-SNE 

      Anders, Friedrich; Chiappini, C.C.M.; Santiago, Basilio Xavier; Matijeviĉ, Gal; Queiroz, Anna Bárbara de Andrade; Steinmetz, M.; Guiglion, Guillaume (2018) [Artigo de periódico]
      In the era of large-scale Galactic astronomy and multi-object spectroscopic stellar surveys, the sample sizes and the number of available stellar chemical abundances have reached dimensions in which it has become difficult ...

    • Estimating stellar birth radii and the time evolution of Milky Way’s ISM metallicity gradient 

      Minchev, Ivan; Anders, Friedrich; Recio-Blanco, Alejandra; Chiappini, C.C.M.; Laverny, Patrick de; Queiroz, Anna Bárbara de Andrade; Steinmetz, M.; Adibekyan, Vardan; Carrillo, Ismael; Cescutti, Gabriele; Guiglion, Guillaume; Hayden, Michael; Jong, Roelof S. de; Kordopatis, Georges; Majewski, Steven Raymond; Martig, Marie; Santiago, Basilio Xavier (2018) [Artigo de periódico]
      We present a semi-empirical, largelymodel-independent approach for estimatingGalactic birth radii, rbirth, for Milky Way disc stars. The technique relies on the justifiable assumption that a negative radial metallicity ...