Astrofísicas: Nebulosas planetarias

  • Publicación
    Bow-shocks and possible jet-shell interaction in the planetary nebula M 2-48
    Deep narrow band CCD images in the Hα , [O Iii] lambda5007 Ä, [N Ii] lambda6584 Ä, and [S Ii] lambda6717 +31 Ä emission lines have been obtained for the...
  • Charla
    Buried in the noise.
    As astrophysicists, we are used to extracting physical information from the observations. The usual procedure is to propose a parametric physical model to...
  • Publicación
    C/O and N/O ratios in planetary nebulae with [WC] central stars
    Planetary nebulae (PNe) around [WR] central stars (WRPNe) constitute a particular photoionized nebula class, representing about 10-15% of the PNe with known...
  • Publicación
    C/O ratios in planetary nebulae with dual-dust chemistry from faint optical recombination lines
    We present deep high-resolution (R ˜ 15 000) and high-quality UVES optical spectrophotometry of nine planetary nebulae with dual-dust chemistry. We compute...
  • Publicación
    Candidate Planetary Nebulae in IPHAS catalog (Viironen+, 2009)
    1005 objects selected from the IPHAS survey catalogue. Of these 721 are new PN candidates while 224 are known objects. Also listed is the information for...
  • Publicación
    Candidate Planetary Nebulae in M 33 (Magrini+, 2001)
    File table1.dat contains the identification number, the coordinates (2000), the Hα+[NII] flux and the [OIII]5007 flux of the PNe detected in Messier 33, with...
  • Publicación
    Candidate Planetary Nebulae in M81 (Magrini+, 2001)
    File table1.dat contains the identification number, the coordinates (2000), the [OIII]5007 and the Hα+[NII] flux of the candidate PNe detected in Messier 81...
  • Publicación
    Candidate planetary nebulae in the IPHAS photometric catalogue
    Context: We have carried out a semi-automated search for planetary nebulae (PNe) in the INT photometric H-alpha survey (IPHAS) catalogue. We present the PN...
  • Publicación
    Carbon Abundances in Compact Galactic Planetary Nebulae: An Ultraviolet Spectroscopic Study with the Space Telescope Imaging Spectrograph (STIS)
    We surveyed a sample of compact Galactic planetary nebulae (PNe) with the Space Telescope Imaging Spectrograph on the Hubble Space Telescope (HST) to determine...