Astrofísicas: Nebulosas planetarias

  • Publicación
    Hydrogen deficient planetary nebulae - Preliminary results
    New spectra of A78 and A58 at different positions in the nebulae are presented. An abundance gradient is found in A78, extending quite close to the center...
  • Publicación
    Hydrogenated amorphous carbon grains as an alternative carrier of the 9-13 μm plateau feature in the fullerene planetary nebula Tc 1
    Fullerenes have been observed in several astronomical objects since the discovery of C 60 in the mid-infrared (mid-IR) spectrum of the planetary nebula (PN) Tc...
  • Publicación
    IACUB - a New Echelle Spectrograph for Use at the Observatorio del Roque-De
    An uncrossed echelle spectrograph has been constructed in a collaboration between the Queen's University of Belfast and the Instituto de Astrofísica de Canarias...
  • Publicación
    Identification of Near-infrared [Se iii] and [Kr vi] Emission Lines in Planetary Nebulae
    We identify [Se iii] 1.0994 μm in the planetary nebula (PN) NGC 5315 and [Kr vi] 1.2330 μm in three PNe from spectra obtained with the Folded-Port InfraRed...
  • Publicación
    Imaging resources for the GTC: IPHAS
    IPHAS is a deep, fully photometric H α survey of the northern Galactic plane carried out with the Isaac Newton telescope at La Palma. The IPHAS point source Hα...
  • Publicación
    Imaging resources for the GTC: the Local Group Census
    The Local Group Census is a narrowband imaging survey aimed at cataloguing the emission-line populations in the galaxies of the Local Group. Data, which were...
  • 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...