Astrophysical: Accretion

  • 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...
  • Publication
    The black hole transient Nova Scorpii 1994 (=GRO J1655-40): orbital ephemeris and optical light curve
    We have measured the brightness of the optical counterpart of the black hole X-ray binary Nova Sco 1994 (GRO J1655-40) during 40 nights between 1995 May 3 and...
  • Publication
    The central parsecs of M87: jet emission and an elusive accretion disc
    We present the first simultaneous spectral energy distribution (SED) of M87 core at a scale of 0.4 arcsec ( ˜ 32 pc) across the electromagnetic spectrum. Two...
  • Publication
    The complex evolution of the X-ray binary transient MAXI J1807+132 along the decay of its discovery outburst
    MAXI J1807+132 is an X-ray transient discovered during the decay of an outburst in 2017. We present optical and X-ray monitoring of the source over more than...