Publication type: Non-refereed

  • Publication
    The Substellar Population in the Young σ Orionis Cluster, Spatial Distribution
    We review different surveys, in the optical and infrared, conducted in the very young (age 1 8 Myr), nearby (d ˜ 350 pc) σ Orionis cluster aimed to characterize...
  • Publication
    The Substellar Population in σ Orionis
    The σ Orionis cluster (˜3 Myr, 350 pc) is an ideal site to investigate the early evolution of substellar (brown dwarf and planetary mass) objects. To date, the...
  • Publication
    The Substellar Population of the σ Orionis Cluster
    We present a deep I, Z photometric survey (I compl = 22 mag) covering a total area of 1.12 deg2 in the σ Orionis cluster. Using I, I - Z color-magnitude...
  • Publication
    The subsurface structure of sunspots and the origin of solar active regions
    Several topics concerning the subsurface structure and evolution of sunspots are discussed. These include the morphology and stability of the magnetized plasma...
  • Publication
    The Subsurface Structure of Sunspots and the Origin of Solar Active Regions
    Several topics concerning the subsurface structure and evolution of sunspots are discussed. These include the morphology and stability of the magnetized plasma...
  • Publication
    The SUMO project: a SUrvey of Multiple pOpulations in globular clusters
    We present the first results of the SUMO project, aimed at studying multiple populations in globular clusters. For this purpose we obtained wide-field...
  • Publication
    The Sun and the Solar System
    High-resolution observations provide evidence of the existence of small-amplitude transverse oscillations in solar filament fine structures. These oscillations...
  • Publication
    The Sun as a Star: Background, Intensity and Velocity, Power Spectra and Convection
    Not Available
  • Publication
    The Sun at high resolution: first results from the Sunrise mission
    The Sunrise balloon-borne solar observatory consists of a 1m aperture Gregory telescope, a UV filter imager, an imaging vector polarimeter, an image...