402 citations · 606 across the 5 of their papers we have counts for
5 papers
Target Selection for the Apache Point Observatory Galactic Evolution Experiment (APOGEE)
G. Zasowski, Jennifer A. Johnson, P. M. Frinchaboy +43
The Apache Point Observatory Galactic Evolution Experiment (APOGEE) is a high-resolution infrared spectroscopic survey spanning all Galactic environments (i.e., bulge, disk, and ha…
A new Milky Way halo star cluster in the Southern Galactic Sky
Eduardo Balbinot, B. X. Santiago, L. da Costa +7
We report on the discovery of a new Milky Way companion stellar system located at (RA, Dec) = (22h10m43.15s, +14:56:58.8). The discovery was made using the eighth data release of S…
Chromospherically young, kinematically old stars
H. J. Rocha-Pinto, B. V. Castilho, W. J. Maciel
We have investigated a group of stars known to have low chromospheric ages, but high kinematical ages. Isochrone, chemical and lithium ages are estimated for them. The majority of…
Metallicity effects on the chromospheric activity-age relation for late-type dwarfs
H. J. Rocha-Pinto, W. J. Maciel
We show that there is a relationship between the age excess, defined as the difference between the stellar isochrone and chromospheric ages, and the metallicity as measured by the…
A Model for the Chemical Evolution of the Galaxy with Refuses
Helio J. Rocha-Pinto, Lilia I. Arany-Prado, Walter J. Maciel
A model is presented for the chemical evolution of the solar neighbourhood which takes into account three families of galactic objects, according to their condensation states: star…