Astrophysical: Planetary nebulae

  • Publication
    Dust properties in the circumstellar shells of evolved stars: Observational constraints from ISO and Spitzer infrared spectroscopy
    We present the results of a systematic analysis of the solid state features identified in the circumstellar environments of a large sample of evolved stars with...
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    Dust scattering and kinematics within the envelope of IRAS 09371+1212.
    We have acquired narrow and broad band imaging, together with high and low resolution spectroscopy for the source IRAS 09371+1212. As a result, we are able to...
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    Early results from ChanPLaNS: Mystery of hard X-ray emitting CSPNe†
    We are presently using the Chandra X-ray Observatory to conduct the first systematic X-ray survey of planetary nebulae (PNe) in the solar neighborhood. The...
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    Energy implications of temperature fluctuations
    We quantify the energy radiated through all the collisional lines in a photoionized nebula in the presence of temperature fluctuations in the form of hot spots...
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    Enigmatic Low-Velocity Jet-Like Features in Planetary Nebulae
    We are developing a project aimed at studying the physical properties, origin and evolution of low-ionization structures in planetary nebulae. Within this...
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    Estudio cinemático de la nebulosa planetaria NGC 6905.
    Not Available
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    ETHOS 1: a high-latitude planetary nebula with jets forged by a post-common-envelope binary central star
    We report on the discovery of ETHOS 1 (PN G068.1+11.0), the first spectroscopically confirmed planetary nebula (PN) from a survey of the SuperCOSMOS Science...
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    Euclid preparation. XXVII. A UV-NIR spectral atlas of compact planetary nebulae for wavelength calibration
    The Euclid mission will conduct an extragalactic survey over 15 000 deg 2 of the extragalactic sky. The spectroscopic channel of the Near-Infrared Spectrometer...
  • Publication
    Evidence for binarity in the bipolar planetary nebulae A 79, He 2-428 and M 1-91
    We present low and high resolution long-slit spectra of three bipolar planetary nebulae (PNe) with bright central cores: A 79, He 2-428 and M 1-91. He 2-428 and...