Consulte o link da referência para acessar o original. Sumário: The Galactic Bulge can uniquely be studied from large samples of individual stars and is therefore of prime importance for…
Consulte o link da referência para acessar o original. Sumário: The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) began observations in 2014 July. It pursues three core programs:…
Consulte o link da referência para acessar o original. Sumário: We describe the public ESO near-IR variability survey (VVV) scanning the Milky Way bulge and an adjacent section of the…
Consulte o link da referência para acessar o original. Sumário: We are carrying studies on the metal-poor globular clusters of the Galactic bulge. These objects appear to be very old,…
Consulte o link da referência para acessar o original. Sumário: In the framework of the ESO Large Programme ``First Stars'', very high-quality spectra of some 70 very metal-poor dwarfs and…
Consulte o link da referência para acessar o original. Sumário: We present a new determination of the metallicity distribution, age, and luminosity function of the Galactic bulge stellar population. By…
Consulte o link da referência para acessar o original. Sumário: We present a high-resolution (R= 75 000, S/N ~ 500) spectroscopic analysis of the bright (V= 11.7), extreme halo giant…
Consulte o link da referência para acessar o original. Sumário: In the recent years we have concentrated efforts to collect Colour-Magnitude Diagrams of the globular clusters projected in the central…
Consulte o link da referência para acessar o original. Sumário: High resolution Reticon and CCD spectra comprehending the forbidden O I 6300.311 line were obtained for old and thick disk…
Consulte o link da referência para acessar o original. Sumário: The [O I] λ6300.311 Å line was observed in 20 halo giants, using a CCD detector. Synthetic spectra are computed…