Astrophysical: H II regions

  • Publication
    Bidimensional spectroscopy of the central kiloparsec of NGC 4151
    Sixty-one bidimensionally distributed spectra covering the circumnuclear region of NGC 4161 within a radius of about 6.5 arcsec are presented. The local...
  • Publication
    Breakout: The Origin of Faint Extended Broad Emission Lines Associated with Giant Extragalactic H II Regions
    The faint extended broad (>=1000 km s-1) optical emission lines associated with giant H II regions are shown here to be produced in a shell of ISM material...
  • Publication
    BUBBLY: a method for detecting and characterizing interstellar bubbles using Fabry-Perot spectroscopy
    We present a new method for the detection and characterization of expansion in galaxy discs based on Hα Fabry-Perot spectroscopy, taking advantage of the high...
  • Publication
    Can stellar winds account for temperature fluctuations in HII regions?. The case of NGC 2363
    We compare the rate of kinetic energy injected by stellar winds into the extragalactic H II region NGC 2363 to the luminosity needed to feed the observed...
  • Publication
    Can stellar winds account for temperature fluctuations?
    Not Available
  • Publication
    Carbon and oxygen abundance gradients in NGC 300 and M33 from optical recombination lines★
    We present deep spectrophotometry of several H II regions in the nearby low-mass spiral galaxies NGC 300 and M33. The data have been taken with Ultraviolet...
  • Publication
    Carbon and Oxygen Abundances from Recombination Lines in Low Metallicity H II Regions
    We have measured C II and O II recombination lines in several H II regions of low-metallicity dwarf galaxies. These objects show lower C/O ratios than H II...
  • Publication
    Carbon and oxygen abundances from recombination lines in low-metallicity star-forming galaxies. Implications for chemical evolution
    We present deep echelle spectrophotometry of the brightest emission-line knots of the star-forming galaxies He 2-10, Mrk 1271, NGC 3125, NGC 5408, POX 4, SDSS...
  • Publication
    Carbon and Oxygen Galactic Gradients: Observational Values from H II Region Recombination Lines
    We present results of deep echelle spectrophotometry of eight Galactic H II regions located at Galactocentric distances between 6.3 and 10.4 kpc. The data have...