Astrofísicas: Galaxias enanas

  • Charla
    (1) Polarized Line Formation theories: the relevance of partial; (2) TBD; (3) On all things transit.
    1) Polarized Line Formation theories: the relevance of partial non-coherence in light scattering. Dr. Sampoorna Malali The basic theoretical tool for diagnosing...
  • Publicación
    A Search for Faint Resolved Galaxies Beyond the Milky Way in DES Year 6: A New Faint, Diffuse Dwarf Satellite of NGC 55
    We report results from a systematic wide-area search for faint dwarf galaxies at heliocentric distances from 0.3 to 2 Mpc using the full 6 yr of data from the...
  • Charla
    Andromeda II: a merger remnant or a product of tidal stirring
    I will present an evolutionary model for the origin of Andromeda II, a dSph satellite of M31, involving a merger between two disky dwarf galaxies than explains...
  • Publicación
    Application of a new evolutionary model for stellar populations to photometric maps of M32
    A cyclical approximation of the evolutionary synthesis of stellar populations has been developed into a general solution for the mass and time-dependence of the...
  • Charla
    Astrophysical probes of dark matter
    Dark matter makes up most of the mass of the Universe but remains mysterious. I discuss recent progress in constraining its properties by measuring its...
  • Publicación
    Asymptotic giant branch stars in NGC 6822: Probes of star formation history
    About 500 asymptotic giant branch (AGB) stars have been resolved and photometrically measured in the Local Group (LG) dwarf irregular galaxy NGC 6822. They draw...
  • Publicación
    BVR photometry of the Sculptor dwarf spheroidal galaxy .
    We present accurate B, V, R photometry of the Sculptor dwarf spheroidal galaxy. The data have been collected with the Wide Field Imager available at 2.2 m ESO...
  • Publicación
    Can Cuspy Dark-matter-dominated Halos Hold Cored Stellar Mass Distributions?
    According to the current concordance cosmological model, dark matter (DM) particles are collisionless and produce self-gravitating structures with a central...
  • Publicación
    CCD photometry of resolved dwarf irregular galaxies. I - Sextans A
    CCD UBV photometry of 2279 stars in Sextans A is presented. Differences with the photometric scales of Sandage and Carlson (1985) and Hoessel et al. (1983) are...