Astrophysical: Planetary nebulae

  • Publication
    Neutron-capture element abundances in the planetary nebula NGC 5315 from deep optical and near-infrared spectrophotometry★†
    We analyse the chemical composition of the planetary nebula (PN) NGC 5315, through high-resolution (R ∼ 40000) optical spectroscopy with Ultraviolet-Visual...
  • Publication
    Neutron-capture Elements in Planetary Nebulae: First Detections of Near-infrared [Te III] and [Br V] Emission Lines
    We have identified two new near-infrared (NIR) emission lines in the spectra of planetary nebulae arising from heavy elements produced by neutron-capture...
  • Talk
    New Advances in Nebular Spectroscopy of Heavy Elements
    The origins of neutron(n)-capture elements (atomic number Z > 30) have historically been discerned from the interpretation of stellar spectra. However, in the...
  • Publication
    New candidate planetary nebulae in M 81
    A 34'x34' field centred on the spiral galaxy M 81 has been searched for emission-line objects using the prime focus wide field camera (WFC) of the 2.54 m Isaac...
  • Publication
    New Candidate Planetary Nebulae in the IPHAS Survey: the Case of Planetary Nebulae with ISM interaction
    We present the results of the search for candidate Planetary Nebulae interacting with the interstellar medium (PN-ISM) in the framework of the INT Photometric...
  • Publication
    New evolved planetary nebulae in the southern hemisphere
    The major purpose of this paper is to investigate the nature of planetary nebulae (PNe) candidates in the southern hemisphere, taken from an internal list. We...
  • Publication
    New groups of planetary nebulae with peculiar dust chemistry towards the Galactic bulge
    Aims: We investigate Galactic bulge planetary nebulae without emission-line central stars for which peculiar infrared spectra have been obtained with the...
  • Publication
    New Insights Into the Dynamics and Expansion Parallax of Nebulae around Symbiotic Stars
    Currently, there are a dozen known spatially resolved nebulae around symbiotic stars. We summarize their properties, focusing on their dynamical ones. Then, new...
  • Publication
    New Observations of the High-Velocity Outflows of the Proto-Planetary Nebula Hen 3-1475
    The proto-planetary nebula Hen 3-1475 shows a remarkable highly collimated optical jet with a S-shaped string of shock-excited knots. Moreover, extremely high...