Astrophysical: Accretion

  • Publication
    EX draconis: using eclipses to separate outside-in and inside-out outbursts
    We present a study of the eclipses in the accreting white dwarf EX draconis (EX Dra) during TESS Cycles 14 and 15. During both of the two outbursts present in...
  • Publication
    Exploring the tilted accretion disc of AQ Men with TESS
    AQ Men is a nova-like variable that is presumed to have a tilted, precessing accretion disc. Grazing eclipses in this system have been speculated to be useful...
  • Publication
    Failed-transition outbursts in black hole low-mass X-ray binaries
    Black hole low-mass X-ray binaries (BH LMXBs) evolve in a similar way during outburst. Based on the X-ray spectrum and variability, this evolution can be...
  • Publication
    Fast infrared winds during the radio-loud and X-ray obscured stages of the black hole transient GRS 1915+105
    The black hole transient GRS 1915+105 entered a new phase of activity in 2018, generally characterised by low X-ray and radio fluxes. This phase has only been...
  • Publication
    Fast photometry of quiescent soft X-ray transients with the Acquisition Camera on Gemini-South
    We present a compilation of high time-resolution photometric observations of quiescent soft X-ray transients obtained with the Acquisition Camera on Gemini...
  • Publication
    Fast quasi-periodic oscillations in the eclipsing polar VV Puppis from VLT and XMM-Newton observations
    We present high time resolution optical photometric data of the polar VV Puppis obtained simultaneously in three filters (u', HeII λ4686, r') with the ULTRACAM...
  • Publication
    Fifteen years of XMM-Newton and Chandra monitoring of Sgr A★: evidence for a recent increase in the bright flaring rate
    We present a study of the X-ray flaring activity of Sgr A⋆ during all the 150 XMM-Newton and Chandra observations pointed at the Milky Way centre over the last...
  • Publication
    Flares, wind and nebulae: the 2015 December mini-outburst of V404 Cygni
    After more than 26 years in quiescence, the black hole transient V404 Cyg went into a luminous outburst in 2015 June, and additional activity was detected in...
  • Publication
    Flickering in AGB stars: probing the nature of accreting companions
    Binary companions to asymptotic giant branch (AGB) stars are an important aspect of their evolution. Few AGB companions have been detected, and in most cases it...