Astrofísicas: Nebulosas planetarias

  • Publicación
    Imaging the Elusive H-poor Gas in the High adf Planetary Nebula NGC 6778
    We present the first direct image of the high-metallicity gas component in a planetary nebula (NGC 6778), taken with the OSIRIS Blue Tunable Filter centered on...
  • Noticia
    Impresionantes imágenes de la nebulosa del Anillo a través de los ojos del telescopio espacial James Webb
    Un equipo científico internacional, en el que participa personal investigador del Instituto de Astrofísica de Canarias, comparten la intrincada y etérea belleza...
  • Publicación
    Improved non-LTE Balmer-line profiles for hot stars
    Improved non-LTE line formation calculations for hydrogen in O-stars are presented. The calculations are carried out by means of the method recently developed...
  • Publicación
    Infrared astronomy
    The physics of infrared emission processes is examined, taking into account black body radiation, radiation from dust particles, thermal plasma emission...
  • Publicación
    Infrared Space Observatory Observations of IRAS 16594-4656: A New Proto-Planetary Nebula with a Strong 21 Micron Dust Feature
    Based on ISO short-wavelength spectrograph (SWS)+long-wavelength spectrograph (LWS) observations, IRAS 16594-4656 is identified as a new member of the rare...
  • Publicación
    Infrared Study of Fullerene Planetary Nebulae
    We present a study of 16 planetary nebulae (PNe) where fullerenes have been detected in their Spitzer Space Telescope spectra. This large sample of objects...
  • Publicación
    Integral field spectroscopy of the planetary nebula NGC 3242 and the puzzling nature of its low-ionization structures
    Context. We investigate the physico-chemical properties of the planetary nebula (PN) NGC 3242 in both 1D and 2D, using integral field unit (IFU) data. This PN...
  • Publicación
    Internal Proper Motions in the Eskimo Nebula
    We present measurements of internal proper motions at more than 500 positions of NGC 2392, the Eskimo Nebula, based on images acquired with WFPC2 on board the...
  • Publicación
    Internal Proper-Motions in the Eskimo Nebula
    We present internal proper motion measurements of more than five hundred positions of NGC 2392, based on images acquired with the WFPC2 on bord of the Hubble...