Astrofísicas: Regiones H II

  • Publicación
    H II regions in Sextans A
    CCD narrow-band H-alpha photometry of the Sextans A Local Group dwarf irregular galaxy is presented. Fourteen H II regions have been recorded. Their...
  • Publicación
    H II Regions Within a Compact High Velocity Cloud. A Nearly Starless Dwarf Galaxy?
    Within the SECCO survey we identified a candidate stellar counterpart to the Ultra Compact High Velocity Cloud (UCHVC) HVC274.68+74.70-123 that was suggested by...
  • Publicación
    H II regions, morphology and star formation in disc galaxies.
    The distribution and morphology of H II regions in the discs of spirals has been examined in great detail for a set of objects imaged in Hα. In those with...
  • Publicación
    Hidden supernova remnants in the Large Magellanic Cloud H II complex N44
    We have obtained ROSAT PSPC observations of N44, one of the largest H II complexes in the Large Magellanic Cloud. The X-ray emission mostly fails within the...
  • Publicación
    High resolution Michelson interferometer for airborne infrared astronomical observations. I - Concept and performance
    A Michelson interferometer has been built for use with the 91-cm telescope on NASA's Gerard P. Kuiper Airborne Observatory primarily to measure IR line emission...
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    High spatial resolution mid-infrared spectroscopy of the starburst galaxies NGC 3256, II Zw 40 and Henize 2-10
    Aims.In order to show the importance of high spatial resolution observations of extra-galactic sources when compared to observations obtained with larger...
  • Publicación
    High-Resolution Spectroscopy of H II Galaxies: Structure and Supersonic Line Widths
    We present high-resolution echelle spectroscopy of a sample of H II galaxies. In all galaxies we identify different Hα-emitting knots along the slit crossing...
  • Publicación
    High-Velocity Gas in the Luminous H II Regions of NGC 1530
    We are carrying out a systematic study of the ensuremath {{H}alpha } emission line profiles from the H II regions in NGC 1530 (Knapen et al. 2001) based on a...
  • Publicación
    HII region catalogue of M100 (Knapen, 1998)
    From a new mosaic image in the H-α line of the complete disc of the spiral galaxy M100, a catalogue is composed listing 1948 individual HII regions. For each...