Astrophysical: Milky Way stellar halo

  • Publication
    A Blueprint for the Milky Way's Stellar Populations. IV. A String of Pearls-the Galactic Starburst Sequence

    We continue our series of papers on phase-space distributions of stars in the Milky Way based on photometrically derived metallicities and Gaia astrometry, with...

  • Publication
    Detection of Multiple Phase Space Overdensities of GSE Stars by Orbit Integration

    In N-body simulations, nearly radial mergers can form shell-like overdensities in the sky position and phase space (r - v r ) due to the combination of...

  • Publication
    Identifying RR Lyrae Variable Stars in Six Years of the Dark Energy Survey

    We present a search for RR Lyrae stars using the full six-year data set from the Dark Energy Survey covering ∼5000 deg 2 of the southern sky. Using a multistage...

  • Publication
    On the Use of Field RR Lyrae as Galactic Probes. II. A New ΔS Calibration to Estimate Their Metallicity

    We performed the largest and most homogeneous spectroscopic survey of field RR Lyraes (RRLs). We secured ≍6300 high-resolution (HR, R ∼ 35,000) spectra for 143...

  • Publication
    On the Use of Field RR Lyrae as Galactic Probes. III. The α-element Abundances

    We provide the largest and most homogeneous sample of α-element (Mg, Ca, Ti) and iron abundances for field RR Lyrae (RRLs; 162 variables) by using high...

  • Publication
    On the Use of Field RR Lyrae As Galactic Probes: IV. New Insights Into and Around the Oosterhoff Dichotomy

    We discuss the largest and most homogeneous spectroscopic data set of field RR Lyrae variables (RRLs) available to date. We estimated abundances using both high...

  • Publication
    Overview of the DESI Milky Way Survey

    We describe the Milky Way Survey (MWS) that will be undertaken with the Dark Energy Spectroscopic Instrument (DESI) on the Mayall 4 m telescope at the Kitt Peak...