Navegação Ciências Exatas e da Terra por Autor "Kordopatis, Georges"

Resultados 1-3 de 3

    • Cardinal kinematics – I. : rotation fields of the APOGEE survey 

      Kordopatis, Georges; Wyse, Rosemary F.G.; Chiappini, C.C.M.; Minchev, Ivan; Anders, Friedrich; Santiago, Basilio Xavier (2017) [Artigo de periódico]
      Correlations between stellar chemistry and kinematics have long been used to gain insight into the evolution of the Milky Way Galaxy. Orbital angular momentum is a key physical parameter and it is often estimated from ...

    • 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 ...

    • The Gaia-ESO survey : radial metallicity gradients and age-metallicity relation of stars in the Milky Way disk 

      Bergemann, Maria; Ruchti, Gregory; Serenelli, Aldo M.; Feltzing, Sofia; Alves-Brito, Alan; Asplund, Martin; Bensby, Thomas L.; Gruyters, Pieter; Heiter, Ulrike; Hourihane, Anna; Korn, Andreas J.; Lind, Karin; Marino, Anna F.; Jofre, Paula; Nordlander, Thomas; Ryde, Nils A. E.; Worley, Clare C.; Gilmore, Gerard Fitzgerald; Randich, Sofia; Ferguson, Annette M. N.; Jeffries, Rob D.; Micela, Giuseppina; Negueruela, Ignacio; Prusti, Timo; Rix, H.-W.; Vallenari, Antonella; Alfaro, Emilio Javier; Allende Prieto, Carlos; Bragaglia, Angela; Koposov, Sergey E.; Lanzafame, Alessandro C.; Pancino, Elena; Recio-Blanco, Alejandra; Smiljanic, Rodolfo Henrique Silva; Walton, Nicholas A.; Costado, María Teresa; Franciosini, Elena; Hill, Vanessa; Lardo, Carmela; De Laverny, Patrick‏; Magrini, Laura; Maiorca, Enrico; Masseron, Thomas; Morbidelli, Lorenzo; Sacco, Germano; Kordopatis, Georges; Tautvaišiene, Gražina (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 ...