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The SAGA so far: reading the history of the Galaxy with asteroseismology
Luca Casagrande, Victor Silva Aguirre, Aldo M. Serenelli +3
Asteroseismology has the capability of delivering stellar properties which would otherwise be inaccessible, such as radii, masses and thus ages of stars. When this information is c…
Deep SDSS optical spectroscopy of distant halo stars I. Atmospheric parameters and stellar metallicity distribution
C. Allende Prieto, E. Fernandez-Alvar, K. J. Schlesinger +14
We analyze a sample of tens of thousands of spectra of halo turnoff stars, obtained with the optical spectrographs of the Sloan Digital Sky Survey (SDSS), to characterize the stell…
The Vertical Metallicity Gradient of the Milky Way Disk: Transitions in [a/Fe] Populations
Katharine J. Schlesinger, Jennifer A. Johnson, Constance M. Rockosi +10
Using G dwarfs from the Sloan Extension for Galactic Understanding and Exploration (SEGUE) survey, we have determined a vertical metallicity gradient over a large volume of the Mil…
Stroemgren survey for Asteroseismology and Galactic Archaeology: let the SAGA begin
L. Casagrande, V. Silva Aguirre, D. Stello +17
Asteroseismology has the capability of precisely determining stellar properties which would otherwise be inaccessible, such as radii, masses and thus ages of stars. When coupling t…