Astrophysical: H II regions

  • Publication
    The homogeneity of chemical abundances in H II regions of the Magellanic Clouds
    We use very deep spectra obtained with the Ultraviolet-Visual Echelle Spectrograph at the Very Large Telescope to derive physical conditions and chemical...
  • Publication
    The hydrodynamics and ionization structure of gaseous nebulae. I. The time-dependent solution
    We present a one-dimensional numerical scheme that allows for the simultaneous solution of the hydrodynamic equations coupled with energy and ionization...
  • Publication
    The internal dynamical equilibrium of H II regions: A statistical study
    We present an analysis of the integrated Hα emission line profiles for the H SHAPE Ii region population of the spiral galaxies NGC 1530, NGC 6951 and NGC 3359...
  • Publication
    The ionized gas in the spiral galaxy NGC 3359. I. Photometry
    We combine Hα imaging and broad-band optical and NIR imaging over the face of the barred galaxy NGC 3359, obtained within the BARS program on the Canary Island...
  • Publication
    The JCMT Nearby Galaxies Legacy Survey - VII. Hα imaging and massive star formation properties
    We present Hα fluxes, star formation rates (SFRs) and equivalent widths (EWs) for a sample of 156 nearby galaxies observed in the 12CO J= 3-2 line as part of...
  • Publication
    The origin of the ionization of the diffuse interstellar medium in spiral galaxies. I. Photometric measurements
    We present a complete study of the diffuse ionized gas (DIG) in a sample of six spiral galaxies (NGC 157, NGC 3359, NGC 3631, NGC 6764, NGC 6951, NGC 7479)...
  • Publication
    The peculiar planetary nebula M1-78.
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  • Publication
    The Pressure-confined Wind of the Massive and Compact Super Star Cluster M82-A1
    The observed parameters of the young super star cluster M82-A1 and its associated compact H II region are here shown to indicate a low heating efficiency or...
  • Publication
    The primordial helium abundance and the number of neutrino families
    Based on observations of HII regions and on the new computations of the recombination coefficients of the HeI lines by Porter el al. we obtain a primordial...