Astrophysical: Novae

  • Publication
    Searching for nova shells around cataclysmic variables - II. A second campaign
    We report on our second campaign to search for old nova shells around cataclysmic variables (CVs). Our aim was to test the theory that nova eruptions cause...
  • Publication
    Searching for the next Galactic Luminous red nova
    Luminous red novae (LRNe) are astrophysical transients believed to be caused by the partial ejection of a binary star's common envelope (CE) and the merger of...
  • Publication
    Simultaneous Multiwavelength Observations of Dwarf Novae. I. SU Ursae Majoris: Minihumps at a Minioutburst?
    SU Ursae Majoris the prototype of a subgroup of dwarf novae that display superhumps in super- outbursts has been observed during an international campaign...
  • Publication
    Simultaneous X-ray and optical spectroscopy of V404 Cygni supports the multi-phase nature of X-ray binary accretion disc winds
    Observational signatures of accretion disc winds have been found in a significant number of low-mass X-ray binaries at either X-ray or optical wavelengths. The...
  • Publication
    Spectroscopic and photometric periods of six ultracompact accreting binaries
    Ultracompact accreting binary systems each consist of a stellar remnant accreting helium-enriched material from a compact donor star. Such binaries include two...
  • Publication
    Spectroscopic classification of X-ray sources in the Galactic Bulge Survey
    We present the classification of 26 optical counterparts to X-ray sources discovered in the Galactic Bulge Survey. We use (time-resolved) photometric and...
  • Publication
    Spectroscopic Confirmation of Nova Candidates in M31
    We report on the spectroscopic confirmation of four recent optical nova candidates in M31 using the 2.2 m telescope and the Calar Alto Faint Object Spectrograph...
  • Publication
    Spectroscopic observations of V455 Andromedae superoutburst in 2007: The most exotic spectral features in dwarf nova outbursts
    We present our spectroscopic observations of V455 Andromedae during the 2007 superoutburst. Our observations cover this superoutburst from around the optical...
  • Publication
    Spectroscopic search for new SW Sextantis stars in the 3-4 h orbital period range - I
    We report on time-resolved optical spectroscopy of 10 non-eclipsing nova-like cataclysmic variables in the orbital period range between 3 and 4 h. The main...