Astrophysical: Accretion

  • Publication
    T Pyxidis: The First Short-Period Cataclysmic Variable with a Collimated Jet
    We present the first observational evidence for a collimated jet in a short-period cataclysmic variable system: the recurrent nova T Pyxidis. Optical spectra...
  • Publication
    T Tauri candidates and accretion rates using IPHAS: method and application to IC 1396
    The Isaac Newton Telescope (INT) Photometric H-Alpha Survey (IPHAS) is a 1800 deg2 survey of the Northern Galactic Plane, reaching down to r'˜ 21. We...
  • Publication
    Testing the Jet Quenching Paradigm with an Ultradeep Observation of a Steadily Soft State Black Hole
    We present ultradeep radio observations with the Expanded Very Large Array of 4U 1957+11, a Galactic black hole (BH) candidate X-ray binary known to exist in a...
  • Publication
    The "K-Correction" for Irradiated Emission Lines in LMXBs: Evidence for a Massive Neutron Star in X1822-371 (V691 CrA)
    We study the K-correction for the case of emission lines formed in the X-ray-illuminated atmosphere of a Roche lobe-filling star. We compute the K-correction as...
  • Publication
    The 1989 and 2015 outbursts of V404 Cygni: a global study of wind-related optical features
    The black hole transient V404 Cygni exhibited a bright outburst in June 2015 that was intensively followed over a wide range of wavelengths. Our team obtained...
  • Publication
    The 2005 Outburst of the Halo Black Hole X-Ray Transient XTE J1118+480
    We present optical and infrared monitoring of the 2005 outburst of the halo black hole X-ray transient XTE J1118+480. We measured a total outburst amplitude of...
  • Publication
    The 2008 Outburst of EX Lup—Silicate Crystals in Motion
    EX Lup is the prototype of the EXor class of eruptive young stars. These objects show optical outbursts which are thought to be related to runaway accretion...
  • Publication
    The accretion-ejection coupling in the black hole candidate X-ray binary MAXI J1836-194
    We present the results of our quasi-simultaneous radio, submm, infrared, optical and X-ray study of the Galactic black hole candidate X-ray binary MAXI J1836...
  • Publication
    The Average Size and Temperature Profile of Quasar Accretion Disks
    We use multi-wavelength microlensing measurements of a sample of 10 image pairs from 8 lensed quasars to study the structure of their accretion disks. By using...