• Deep SOAR follow-up photometry of two Milky Way outer-halo companions discovered with Dark Energy Survey 

      Luque Canaza, Elmer Fidel; Santiago, Basilio Xavier; Pieres, Adriano; Queiroz, Anna Bárbara de Andrade; Dal Ponte, Marina; Thomas, D. (2018) [Artículo de periódico]
      We report the discovery of a new star cluster, DES 3, in the constellation of Indus, and deeper observations of the previously identified satellite DES J0222.7−5217 (Eridanus III). DES 3 was detected as a stellar overdensity ...
    • Increasing the census of ultracool dwarfs in wide binary and multiple systems using Dark Energy Survey DR1 and Gaia DR2 data 

      Dal Ponte, Marina; Santiago, Basilio Xavier; DES Collaboration (2020) [Artículo de periódico]
      We present the discovery of 255 binary and 6 multiple system candidates with wide (> 5 arcsec) separation composed by ultracool dwarfs (UCDs) companions to stars, plus nine double ultracool dwarf systems. These systems ...
    • StarHorse : a Bayesian tool for determining stellar masses, ages, distances, and extinctions for field stars 

      Queiroz, Anna Bárbara de Andrade; Anders, Friedrich; Santiago, Basilio Xavier; Chiappini, C.C.M.; Steinmetz, M.; Dal Ponte, Marina; Stassun, Keivan G.; Costa, Luiz N. da; Maia, Marcio Antonio Geimba; Souza, Juliana Crestani Ribeiro de; Beers, T.C.; Fernández-Trincado, José Gregorio; García-Hernández, D. A.; Roman-Lopes, Alexandre; Zamora, Olga (2018) [Artículo de periódico]
      Understanding the formation and evolution of our Galaxy requires accurate distances, ages, and chemistry for large populations of field stars. Here, we present several updates to our spectrophotometric distance code, which ...
    • StarHorse results for spectroscopic surveys and Gaia DR3 : chrono-chemical populations in the solar vicinity, the genuine thick disk, and young alpha-rich stars 

      Queiroz, Anna Bárbara de Andrade; Anders, Friedrich; Chiappini, C.C.M.; Barbuy, Beatriz; Khalatyan, Arman V.; Santiago, Basilio Xavier; Nepal, Samir; Steinmetz, M.; Gallart, Carme; Valentini, Marica; Dal Ponte, Marina; Barbuy, Beatriz; Pérez Villegas, Maria de Los Angeles; Masseron, Thomas; Fernández-Trincado, José Gregorio; Khoperskov, Sergey A.; Minchev, Ivan; Fernández Alvar, Emma; Lane, Richard R.; Nitschelm, Christian (2023) [Artículo de periódico]
      The Gaia mission has provided an invaluable wealth of astrometric data for more than a billion stars in our Galaxy. The synergy between Gaia astrometry, photometry, and spectroscopic surveys gives us comprehensive information ...