Astrofísicas: Galaxias

  • Publicación
    Study of the thermal and nonthermal emission components in M 31: the Sardinia Radio Telescope view at 6.6 GHz
    Context. The Andromeda galaxy is the best-known large galaxy besides our own Milky Way. Several images and studies exist at all wavelengths from radio to hard X...
  • Publicación
    Study of the variable broadband emission of Markarian 501 during the most extreme Swift X-ray activity
    Context. Markarian 501 (Mrk 501) is a very high-energy (VHE) gamma-ray blazar located at z = 0.034, which is regularly monitored by a wide range of multi...
  • Publicación
    Studying old populations with RR Lyrae Variables in the Local Group
    We want to study the characteristics and the physical extent of the old populations in a sample of Local Group galaxies in different environments, from the dSph...
  • Publicación
    Studying star forming dwarf galaxies in Abell 779, Abell 1367, Coma, and Hercules clusters
    Context. We continue to study star formation in dwarf galaxies located in nearby clusters. Aims: Known physical and chemical relations outlining the formation...
  • Publicación
    Sub-arcsec mid-IR observations of NGC 1614: Nuclear star formation or an intrinsically X-ray weak AGN?
    We present new mid-infrared (mid-IR) N-band spectroscopy and Q-band photometry of the local luminous IR galaxy NGC 1614, one of the most extreme nearby...
  • Publicación
    Subarcsecond Emission in Seyfert Galaxies: The Nuclear Component in the L and M Bands
    We present deep L- (3.8 μm) and M- (4.7 μm) band imaging with the Infrared Spectrometer and Array Camera (ISAAC) on the ESO Very Large Telescope (VLT) with...
  • Publicación
    Submillimetre compactness as a critical dimension to understand the main sequence of star-forming galaxies
    We study the interstellar medium (ISM) properties as a function of the molecular gas size for 77 infrared-selected galaxies at z ~ 1.3, having stellar masses 10...
  • Publicación
    Submillimetre galaxies in two massive protoclusters at z = 2.24: witnessing the enrichment of extreme starbursts in the outskirts of HAE density peaks
    Submillimetre galaxies represent a rapid growth phase of both star formation and massive galaxies. Mapping SMGs in galaxy protoclusters provides key insights...
  • Publicación
    Sulphur and zinc abundances in Galactic halo stars revisited
    Aims:Based on a new set of sulphur abundances in very metal-poor stars and an improved analysis of previous data, we aim at resolving current discrepancies on...