Navegação Ciências Exatas e da Terra por Autor "Dotter, Aaron Loveren"

Resultados 1-3 de 3

    • GRACES observations of young [α/Fe]-rich stars 

      Yong, David; Casagrande, Luca; Venn, Kimberly A.; Chené, André-Nicolas; Keown, Jared; Malo, Lison; Martioli, Eder; Alves-Brito, Alan; Asplund, Martin; Dotter, Aaron Loveren; Martell, Sarah L.; Meléndez, Jorge; Schlesinger, K.J. (2016) [Artigo de periódico]
      We measure chemical abundance ratios and radial velocities in four massive (i.e. young) [α/Fe]-rich red giant stars using high-resolution high-S/N spectra from ESPaDOnS fed by Gemini-GRACES. Our differential analysis ensures ...

    • Outliers : multicolour photometry guiding the search for evolved binary systems in the globular cluster 47Tucanae 

      Campos, Fabíola; Pelisoli, Ingrid Domingos; Kamann, Sebastian; Husser, Tim Oliver; Dreizler, Stefan; Bellini, Andrea; Robinson, E.L.; Nardiello, Domenico; Piotto, Giampaolo; Kepler, Souza Oliveira; Istrate, Alina G.; Winget, Donald Earl; Montgomery, Michael Houston; Dotter, Aaron Loveren (2018) [Artigo de periódico]
      We use Hubble Space Telescope multicolour photometry of the globular cluster 47 Tucanae to uncover a population of 24 objects with no previous classification that are outliers from the single-star model tracks in the ...

    • Photometric and structural properties of NGC 6544 : a combined VVV-Hubble Space Telescope study 

      Cohen, Roger; Mauro, Francesco; Geisler, Doug; Moni Bidin, Christian; Dotter, Aaron Loveren; Bonatto, Charles Jose (2014) [Artigo de periódico]
      We combine archival Hubble Space Telescope imaging with wide-field near-infrared photometry to study the neglected metal-poor Galactic globular cluster NGC 6544. A high spatial resolution map of differential reddening over ...