Astrofísicas: Grupo local

  • Publicación
    Luminous Blue Variables in the local universe
    Preliminary results of a candidate luminous blue variable (LBV) search made in a region of M33 are presented. The objects were found with narrow band filter...
  • Publicación
    Luminous Red Stars in Local Group Dwarf Elliptical Galaxies: an Intermediate-Age Population?
    In this Letter, we show that the optically bright stars above the tip of the first red giant branch (TRGB) in the color-magnitude diagrams (CMDs) of nearby...
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    Mass-metallicity relation of dwarf galaxies and its dependency on time: clues from resolved systems and comparison with massive galaxies
    Aims: We present a new approach to study the mass-metallicity relation and its dependency on time. Methods: We used the star formation history (SFH) derived...
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    Massive OB stars at varying Z
    Massive stars play a key role in environments with very different metallicities. To interpret the role of massive stars in these systems we have to know their...
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    Merger traces in the spatial distribution of stellar populations in the Fornax dSph galaxy
    We present a comprehensive and detailed study of the stellar populations of the Fornax dwarf spheroidal galaxy. We analyse their spatial distributions along the...
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    Microlensing toward Crowded Fields: Theory and Applications to M31
    We present a comprehensive treatment of the pixel-lensing theory and apply it to lensing experiments and their results toward M31. Using distribution functions...
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    Model Color-Magnitude Diagrams for Hubble Space Telescope Observations of Local Group Dwarf Galaxies
    In this Letter, we discuss a method to conduct a quantitative study of the star formation history (SFH) of Local Group (LG) galaxies using Hubble Space...
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    Nature of a shell of young stars in the outskirts of the Small Magellanic Cloud
    Context. Understanding the evolutionary history of the Magellanic Clouds requires an in-depth exploration and characterization of the stellar content in their...
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    No sign (yet) of intergalactic globular clusters in the Local Group
    We present Gemini Multi-Object Spectrograph (GMOS) imaging of 12 candidate intergalactic globular clusters (IGCs) in the Local Group, identified in a recent...