Astrofísicas: Nebulosas planetarias

  • Publicación
    Planetary nebulae hosting accreting white dwarfs: a possible solution for the mysterious cut-off of planetary nebula luminosity function?
    Many binary companions to the central stars of planetary nebulae (PNe) are found to be inflated, perhaps indicating that accretion onto the central star might...
  • Publicación
    Planetary nebulae in Gaia EDR3: Central star identification, properties, and binarity
    Context. The Gaia Early Data Release 3 (EDR3), published in December 2020, features improved photometry and astrometry compared to that published in the...
  • Publicación
    Planetary nebulae in the dwarf galaxy NGC 6822: Detection of new candidates
    We have discovered 13 new candidate Planetary Nebulae (PNe) in the dwarf irregular galaxy NGC 6822, increasing its total number to 17 objects. Our sample of...
  • Publicación
    Planetary nebulae seen with TESS: Discovery of new binary central star candidates from Cycle 1
    Context. It has become clear in recent years that binarity plays a crucial role in many aspects of planetary nebulae (PNe), particularly with regard to the...
  • Publicación
    Planetary nebulae seen with TESS: New and revisited short-period binary central star candidates from Cycles 1 to 4
    Context. High-precision and high-cadence photometric surveys such as Kepler or TESS are making huge progress not only in the detection of new extrasolar planets...
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    Planetary nebulae: the universal mass-metallicity relation for Local Group dwarf galaxies and the chemistry of NGC 205
    Here we study 16 planetary nebulae (PNe) in the dwarf irregular galaxy NGC 205 by using Gemini Multi-Object Spectrographs (GMOS@Gemini) spectra to derive their...
  • Publicación
    PN G000.2+06.1 and PN G002.3+02.2: Two New Type I Planetary Nebulae in the Galactic Bulge
    We confirm the planetary nebula nature of two sources: PN G000.2+06.1 and PN G002.3+02.2, previously identified by Terzan in a photometric survey toward the...
  • Publicación
    PN G135.9+55.9: a New, Extremely Oxygen-Poor Planetary Nebula in the Galactic Halo
    We show that SBS1150+599A is most probably a planetary nebula located in the Galactic halo (becoming PN G135.9+55.9). Our photoionization models indicate that...
  • Publicación
    pPNe: Lobe-Shaping Models & HST Images
    HST images of some 50 pre planetary nebulae ("pPNe") are now available. A confrontation of images with theoretical shaping models is timely in order to...