• Publication
    Active Galactic Nuclei Feedback and the Origin and Fate of the Hot Gas in Early-type Galaxies
    A recent determination of the relationships between the X-ray luminosity of the ISM (L X) and the stellar and total mass for a sample of nearby early-type...
  • Publication
    Active region asymmetry as a result of the rise of magnetic flux tubes
    The magnetic flux tubes that rise across the convection zone to produce active regions are shown to develop a difference in inclination between their preceding...
  • Publication
    Active Region Filaments Might Harbor Weak Magnetic Fields
    Recent spectropolarimetric observations of active region filaments have revealed polarization profiles with signatures typical of the strong field Zeeman regime...
  • Publication
    Active region fine structure observed at 0.08 arcsec resolution
    Context. The various mechanisms of magneto-convective energy transport determine the structure of sunspots and active regions. Aims: We characterise the...
  • Publication
    Active Region Magnetic Fields. I. Plage Fields
    We present observations taken with the Advanced Stokes Polarimeter (ASP) in active-region plages and study the frequency distribution of the magnetic field...
  • Publication
    Active Region Morphologies Selected from Near-side Helioseismic Data
    We estimate the morphology of near-side active regions using near-side helioseismology. Active regions from two data sets, Air Force Data Assimilative...
  • Publication
    Active star formation regions at the edge of the LMC Bar: NGC 1850 and NGC 1858
    We present UBV Johnson CCD photometry of two young clusters of the Large Magellanic Cloud (LMC), namely NGC 1850 and NGC 1858, which are located at the NW part...
  • Publication
    Activity at the Deuterium-burning Mass Limit in Orion
    We report very intense and variable Hα emission (pseudoequivalent widths of ~180 and 410 Å) of S Ori 55, a probable free-floating, M9-type substellar member of...
  • Publication
    Activity from the Be/X-ray binary system V0332+53 during its intermediate-luminosity outburst in 2008
    Aims: We present a study of the Be/X-ray binary system V 0332+53 with the main goal of characterizing its behaviour mainly during the intermediate-luminosity X...