Publication type: Refereed

  • Publication
    Deep observation of the NGC 1275 region with MAGIC: search of diffuse γ-ray emission from cosmic rays in the Perseus cluster
    Clusters of galaxies are expected to be reservoirs of cosmic rays (CRs) that should produce diffuse γ-ray emission due to their hadronic interactions with the...
  • Publication
    Deep observations of the globular cluster M15 with the MAGIC telescopes
    A population of globular clusters (GCs) has been recently established by the Fermi-LAT telescope as a new class of GeV γ-ray sources. Leptons accelerated to TeV...
  • Publication
    Deep optical imaging and spectroscopy of a sample of Wolf-Rayet galaxies
    We present results of narrow-band (Hα and adjacent continuum) and broad-band (U, B and V) optical CCD imaging together with high- and intermediate-resolution...
  • Publication
    Deep probing of the photospheric sunspot penumbra: no evidence of field-free gaps
    Context. Some models for the topology of the magnetic field in sunspot penumbrae predict regions free of magnetic fields or with only dynamically weak fields in...
  • Publication
    Deep SDSS optical spectroscopy of distant halo stars. I. Atmospheric parameters and stellar metallicity distribution
    Aims: We analyze a sample of tens of thousands of spectra of halo turnoff stars, obtained with the optical spectrographs of the Sloan Digital Sky Survey (SDSS)...
  • Publication
    Deep SDSS optical spectroscopy of distant halo stars. II. Iron, calcium, and magnesium abundances
    Aims: We analyze a sample of 3944 low-resolution (R ~ 2000) optical spectra from the Sloan Digital Sky Survey (SDSS), focusing on stars with effective...
  • Publication
    Deep SDSS optical spectroscopy of distant halo stars. III. Chemical analysis of extremely metal-poor stars
    Aims: We present the results of an analysis of 107 extremely metal-poor (EMP) stars with metallicities lower than [Fe/H] =- 3.0, identified in medium-resolution...
  • Publication
    Deep spectroscopic luminosity function of Abell 85: no evidence for a steep upturn of the faint-end slope
    We present a new deep determination of the spectroscopic luminosity function (LF) within the virial radius of the nearby and massive Abell 85 (A85) cluster down...
  • Publication
    Deep spectroscopy in nearby galaxy clusters - III. Orbital structure of galaxies in Abell 85
    Galaxies in clusters are strongly affected by their environment. They evolve according to several physical mechanisms that are active in clusters. Their...