Astrophysical: Comets

  • Publication
    Neutral Sodium from Comet Hale-Bopp: A Third Type of Tail
    We report on the discovery and analysis of a striking neutral sodium gas tail associated with comet C/1995 O1 Hale-Bopp. Sodium D line emission has been...
  • Publication
    New spin period determination for comet 6P/d'Arrest
    A lightcurve of comet 6P/d'Arrest from R-band CCD images taken at La Palma 2.52 m NOT telescope is presented. The lightcurve shows noticeable periodic changes...
  • Publication
    NICS-TNG infrared spectroscopy of trans-neptunian objects 2000 EB173 and 2000 WR106
    We report complete near-infrared (0.9-2.4 mu m) spectral observations of trans-neptunian objects (TNOs) 2000 EB173 and 2000 WR106 collected using the new Near...
  • Publication
    Nuclear magnitudes of Jupiter family comets (Tancredi+, 2000)
    A catalog of a sample of 105 Jupiter family (JF) comets (defined as those with Tisserand constants T>2 and orbital periods P
  • Publication
    Nuclear Spectra of Comet 162P/Siding Spring (2004 TU12)
    We present visible and near-IR spectra of the nucleus of comet 162P/Siding Spring (also known as 2004 TU12) obtained in 2004 December, while it had no...
  • Publication
    Nuclear Spectra of Comet 28P Neujmin 1
    We present visible and near-infrared spectra of the nucleus of comet 28P/Neujmin 1, obtained in 2001, 2002, and 2003, while it had no detectable coma. The...
  • Publication
    Numerical simulations of exocomet transits: Insights from β Pic and KIC 3542116
    In recent years, the topic of existence and exploration of exocomets has been gaining increasing attention. The asymmetrical decrease in the star's brightness...
  • Publication
    Observational results for eight long-period comets observed far from the Sun
    Context. With this work we start a systematic analysis of the distant activity of several long-period comets in order to investigate the evolution of activity...
  • Publication
    On the 2001 Splitting of the Nucleus of 51P/Harrington
    The nucleus of 51P/Harrington suffered a major splitting event in Autumn 2001 discovered by amateur José Manteca. The light curve and separation of the...