Astrophysical: Novae

  • Publication
    Analysis of the Gaia DR3 planetary nebula candidates and the possible symbiotic stars among them
    Context. The Gaia DR3, released in June 2022, included low-resolution BP/RP (XP) spectra that have been exploited for the classification of various types of...
  • Publication
    Applications of image sharpening techniques. I - Nebular structure in H-alpha of AG Peg
    H-alpha observations of AG Peg, obtained using an IPCS detector on the 2.5-m Isaac Newton Telescope of the Observatorio del Roque de Los Muchachos on November...
  • Publication
    Binarity and the Abundance Discrepancy Problem in Planetary Nebulae
    The discrepancy between abundances computed using optical recombination lines and collisionally excited lines is a major unresolved problem in nebular...
  • Publication
    Bow shocks, nova shells, disc winds and tilted discs: the nova-like V341 Ara has it all
    V341 Ara was recently recognized as one of the closest (d ≃ 150 pc) and brightest (V ≃ 10) nova-like cataclysmic variables. This unique system is surrounded by...
  • Publication
    Breaking the Habit: The Peculiar 2016 Eruption of the Unique Recurrent Nova M31N 2008-12a
    Since its discovery in 2008, the Andromeda galaxy nova M31N 2008-12a has been observed in eruption every single year. This unprecedented frequency indicates an...
  • Publication
    Cataclysmic variables from a ROSAT/2MASS selection - I. Four new intermediate polars
    We report the first results from a new search for cataclysmic variables (CVs) using a combined X-ray (ROSAT)/infrared (2MASS) target selection that...
  • Talk
    Collapsograms: measurement of low signal-to-noise-ratio solar p modes in spatially-resolved helioseismic data
    1.- I will give an overview of WeCAPP (Wendelstein Calar Alto Pixellensing Project), a microlensing survey towards the Andromeda galaxy. WeCAPP monitored the...
  • Publication
    Combined Chandra, XMM-Newton, and Hubble Space Telescope observations of the Galactic globular cluster NGC 2808
    Aims: Using new Chandra X-ray observations and existing XMM-Newton X-ray and Hubble far ultraviolet observations, we aim to detect and identify the faint X-ray...
  • Publication
    Confirmation of nova M31 2009-08d
    We confirm the nova nature of the possible nova M31 2009-08d, discovered by Rafael Ferrando on UT 2009 Aug 15.0950 (discovery image at http://www.pla-de...