Astrofísicas: Formación de la Vía Láctea

  • Publicación
    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...
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    A Tale of Two Disks: Mapping the Milky Way with the Final Data Release of APOGEE
    We present new maps of the Milky Way disk showing the distribution of metallicity ([Fe/H]), α-element abundances ([Mg/Fe]), and stellar age, using a sample of...
  • Publicación
    An Intermediate-age Alpha-rich Galactic Population in K2
    We explore the relationships between the chemistry, ages, and locations of stars in the Galaxy using asteroseismic data from the K2 mission and spectroscopic...
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    Diagonal Ridge Pattern of Different Age Populations Found in Gaia-DR2 with LAMOST Main-sequence Turnoff and OB-type Stars
    We revisit the diagonal ridge feature (diagonal distributions in the R, v φ plane) found in Gaia and present a timing analysis for it between Galactocentric...
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    Exploring the Stellar Age Distribution of the Milky Way Bulge Using APOGEE
    We present stellar age distributions of the Milky Way bulge region using ages for ∼6000 high-luminosity ( $\mathrm{log}(g)\lt 2.0$ ), metal-rich ([Fe/H] ≥ -0.5)...
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    GTC Follow-up Observations of Very Metal-poor Star Candidates from DESI
    The observations from the Dark Energy Spectroscopic Instrument (DESI) will significantly increase the numbers of known extremely metal-poor stars by a factor of...
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    Physically Motivated Fit to Mass Surface Density Profiles Observed in Galaxies
    Polytropes have gained renewed interest because they account for several seemingly disconnected observational properties of galaxies. Here we study whether...
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    The APO-K2 Catalog. II. Accurate Stellar Ages for Red Giant Branch Stars across the Milky Way
    We present stellar age determinations for 4661 red giant branch stars in the APO-K2 catalog, derived using mass estimates from K2 asteroseismology from the K2...