Astrofísicas: Nebulosas

  • Publicación
    Spectroscopic study of gas outflows in the bipolar nebula S106
    High resolution bidimensional optical spectroscopy in H-alpha line, N II forbidden line at 6548 and 6583 A, and S II forbidden line at 6717 and 6713 A, of the...
  • Publicación
    Spectroscopy of ring nebulae around Wolf-Rayet stars in M33
    We present high and low resolution spectroscopic observations for a sample of seven ring nebulae around Wolf-Rayet (WR) stars in M33: MC 27, MC 44, MC 46, MC 51...
  • Publicación
    The Abundance Gradient in NGC 3344
    The steep abundance gradient found by McCall, Shields, and Rybski (1981) in the Sbc galaxy NGC 3344 is confirmed by a measurement of the electron temperature in...
  • Publicación
    The embedded cluster IRAS17136 - 3617 associated with the nebulosity GM24
    Radio, infrared, and optical observations of the embedded infrared cluster IRAS17136 - 3617 are reviewed. The cluster consists of more than 25 stars with a...
  • Publicación
    The extended nebulosity in the radio galaxy 3C 227
    3C 227 (z = 0.085) exhibits one of the more spectacular extended nebulosities to be found among active galaxies at moderate redshifts. The gas can be traced to...
  • Publicación
    The nature of the Kleinmann-Low nebula
    Recent data on, and interpretations of the Kleinmann-Low nebula are examined. It is suggested that associated high velocity gas is radiatively accelerated by a...
  • Charla
    Tracing the Chemical Evolution of Metals in local Star-Forming Galaxies: aperture effects and abundance patterns
    Nebular emission lines are a powerful diagnostic tool for tracing the chemical evolution in star-forming galaxies (SFGs) across cosmic time. Due to their...
  • Noticia
    Una burbuja interestelar gigante crece en la galaxia de Andrómeda
    Un estudio internacional en el que participan investigadores del Instituto de Astrofísica de Canarias (IAC) y la Universidad de La Laguna (ULL) ha descubierto...