Astrofísicas: Nebulosas planetarias

  • Publicación
    H2 and Brγ Narrowband Imaging of Bipolar Planetary Nebulae
    We present near-IR narrowband continuum-subtracted images in the H2 2.122 μm, and Brγ 2.166 μm emission lines for a sample of 15 bipolar planetary nebulae (PNe)...
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    He 2-25, Th 2-B, 19W32: further links between bipolar planetary nebulae and symbiotic stars?
    Optical spectroscopy of the highly collimated bipolar nebulae He 2-25, Th 2-B and 19W32 is presented. He 2-25 and Th 2-B are found to have very dense (N_e~10^7...
  • Publicación
    Hen 2-104: a close-up look at the Southern Crab
    Aims: The kinematics, shaping, density distribution, expansion distance, and ionized mass of the nebula Hen 2-104, and the nature of its symbiotic Mira are...
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    High resolution long-slit spectroscopy of A 78.
    Not Available
  • Publicación
    High resolution spectroscopy of central stars of planetary nebulae. I - Basic atmospheric parameters and their interpretation
    The authors have obtained high-resolution spectrograms of H-rich central stars of planetary nebulae (CSPN) with the 3.6 m telescope and Cassegrain echelle...
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    High velocity outflows in post-main sequence nebulae.
    Not Available
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    High-resolution Hα imaging of the northern Galactic plane and the IGAPS image database
    The INT Galactic Plane Survey (IGAPS) is the merger of the optical photometric surveys IPHAS and UVEX based on data from the Isaac Newton Telescope (INT)...
  • Publicación
    High-resolution Imaging of NGC 2346 with GSAOI/GeMS: Disentangling the Planetary Nebula Molecular Structure to Understand Its Origin and Evolution
    We present high spatial resolution (≈ 60–90 mas) images of the molecular hydrogen emission in the planetary nebula (PN) NGC 2346. The data were acquired during...
  • Publicación
    High-Velocity Collimated Outflows in Planetary Nebulae: NGC 6337, HE 2-186, and K4-47
    We have obtained narrowband images and high-resolution spectra of the planetary nebulae NGC 6337, He 2-186, and K4-47 with the aim of investigating the relation...