Now showing items 1-3 of 3

    • Abundances and Evolution of Lithium in the Galactic Halo and Disk 

      Ryan, Sean G.; Kajino, T.; Beers, T.C.; Suzuki, T.K.; Romano, D.; Matteucci, F.; Rosolankova, K. (2001-03)
      We have measured the Li abundance of 18 stars with [2[[Fe/H][[1 and 6000[Teff[6400 K, a parameter range that was poorly represented in previous studies. We examine the Galactic chemical evolution (GCE) of this element, ...
    • Are ancient dwarf satellites the building blocks of the Galactic halo? 

      Spitoni, Emanuele; Vincenzo, F.; Matteucci, Francesca; Romano, D. (2016-05-21)
      According to the current cosmological cold dark matter paradigm, the Galactic halo could have been the result of the assemblage of smaller structures. Here we explore the hypothesis that the classical and ultra-faint dwarf ...
    • STEP: the VST survey of the SMC and the Magellanic Bridge - I : Overview and first results 

      Ripepi, V.; Cignoni, M.; Tosic, M.; Marconi, M.; Musella, Ilaria; Grado, A.; Limatola, L.; Clementini, G.; Brocato, Enzo; Cantiello, M.; Capaccioli, M.; Cappellaro, Enrico; Cioni, M-R.L.; Cusano, F.; Dall'Ora, Massimo; Gallagher, Jay S.; Grebel, Eva K.; Nota, Antonella; Palla, Francesco; Romano, D.; Raimondo, G.; Sabbi, Elena; Getman, F.; Napolitano, N.R.; Schipani, P.; Zaggia, S. (2014-08-11)
      STEP (the SMC in Time: Evolution of a Prototype interacting late-type dwarf galaxy) is a Guaranteed Time Observation survey being performed at the VST (the ESO VLT Survey Telescope). STEP will image an area of 74 sq. deg. ...