Astrofísicas: Galaxias

  • Publicación
    Differential O and Si Abundances in M33 Early B Supergiants
    We present non-LTE analyses of four M33 early B supergiant stars and five Galactic counterparts. This is the first time that B supergiants beyond the Magellanic...
  • Publicación
    Diffuse interstellar bands λ5780 and λ5797 in the Antennae Galaxy as seen by MUSE
    Context. Diffuse interstellar bands (DIBs) are faint spectral absorption features of unknown origin. Research on DIBs beyond the Local Group is very limited and...
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    Diffuse light in Hickson compact groups: the dynamically young system HCG 44
    Context: .Compact groups are associations of a few galaxies in which the environment plays an important role in galaxy evolution. The low group velocity...
  • Publicación
    Direct Confirmation of Two Pattern Speeds in the Double-barred Galaxy NGC 2950
    We present the surface photometry and stellar kinematics of NGC 2950, which is a nearby and undisturbed SB0 galaxy hosting two nested stellar bars. We use the...
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    Direct imaging of haloes and truncations in face-on nearby galaxies
    We use ultra-deep imaging from the IAC Stripe 82 Legacy Project to study the surface photometry of 22 nearby, face-on to moderately inclined spiral galaxies...
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    Disc galaxies are still settling. Discovery of the smallest nuclear discs and their young stellar bars
    When galactic discs settle and become massive enough, they are able to form stellar bars. These non-axisymmetric structures induce shocks in the gas, causing it...
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    Discovery and analysis of low-surface-brightness galaxies in the environment of NGC 1052
    The environment of NGC 1052 has recently attracted much attention because of the presence of low-surface-brightness galaxies (LSBGs) with apparently "exotic"...
  • Publicación
    Discovery and Implications of a New Large-Scale Stellar Bar in NGC 5248
    For decades, the grand-design SAB spiral galaxy NGC 5248 has been postulated to host a short bar of semimajor axis 22" (1.6 kpc). From dynamical and...
  • Publicación
    Discovery in IC10 of the farthest known symbiotic star
    We report the discovery of the first known symbiotic star in IC10, a starburst galaxy belonging to the Local Group, at a distance of ~750 kpc. The symbiotic...