Astrofísicas: Acreción

  • Publicación
    The disc-jet coupling in the neutron star X-ray binary Aquila X-1
    We study the accretion/ejection processes (i.e. disc/jet coupling) in the neutron star X-ray binary Aquila X-1 via a multiwavelength approach. We use in the...
  • Publicación
    The donor of Aquila X-1 revealed by high-angular resolution near-infrared spectroscopy
    The low-mass X-ray binary Aquila X-1 is one of the most active neutron star X-ray transients. Despite its relatively bright quiescent optical counterpart, the...
  • Publicación
    The double-peaked 2008 outburst of the accreting milli-second X-ray pulsar, IGR J00291+5934
    Context. In August 2008, the accreting milli-second X-ray pulsar (AMXP), IGR J00291+5934, underwent an outburst lasting ~100 days, the first since its discovery...
  • Publicación
    The enigma of Gaia18cjb: A possible rare hybrid of FUor and EXor properties
    Context. Gaia18cjb is one of the Gaia-alerted eruptive young star candidates that has been experiencing a slow and strong brightening during the last 13 years...
  • Publicación
    The evolution of rapid optical/X-ray timing correlations in the initial hard state of MAXI J1820+070
    We report on a multiepoch campaign of rapid optical/X-ray timing observations of the superbright 2018 outburst of MAXI J1820+070, a black hole low-mass X-ray...
  • Publicación
    The evolution of the disc variability along the hard state of the black hole transient GX 339-4
    We report on the analysis of hard-state power spectral density function (PSD) of GX 339-4 down to the soft X-ray band, where the disc significantly contributes...
  • Publicación
    The evolution of the UV/optical lag spectrum of NGC 7469 seen by the Liverpool Telescope
    We present the results regarding the analysis of an intensive monitoring of the Active Galactic Nucleus (AGN) NGC 7469. We observed the source for 4 months with...
  • Publicación
    The fight for accretion: discovery of intermittent mass transfer in BB Doradus in the low state
    Our long-term photometric monitoring of southern nova-like cataclysmic variables with the 1.3-m Small and Moderate Aperture Research Telescope System (SMARTS)...
  • Publicación
    The First Polarimetric Signatures of Infrared Jets in X-Ray Binaries
    We present near-infrared linear spectropolarimetry of a sample of persistent X-ray binaries, Sco X-1, Cyg X-2, and GRS 1915+105. The slopes of the spectra are...