Astrophysical: Accretion

  • Publication
    Near-quiescent photometry of the X-ray transient J0422+32
    We present I-band photometry of the soft X-ray transient (SXT) J0422+32 taken during a low-brightness state over two weeks in 1993 October. The object had a...
  • Publication
    NICER observations reveal that the X-ray transient MAXI J1348-630 is a black hole X-ray binary
    We studied the outburst evolution and timing properties of the recently discovered X-ray transient MAXI J1348-630 as observed with NICER. We produced the...
  • Publication
    NuSTAR + XMM-Newton monitoring of the neutron star transient AX J1745.6-2901
    AX J1745.6-2901 is a high-inclination (eclipsing) transient neutron star (NS) low-mass X-ray binary showcasing intense ionized Fe K absorption. We present here...
  • Publication
    Observation of enhanced X-ray emission from the CTTS AA Tauri during one transit of an accretion funnel flow
    Context: Classical T Tauri stars are young solar-type stars accreting material from their circumstellar disks. Thanks to a favorable inclination of the system...
  • Publication
    Observational constraints on the powering mechanism of transient relativistic jets
    We revisit the paradigm of the dependence of jet power on black hole (BH) spin in accreting BH systems. In a previous paper, we showed that the luminosity of...
  • Publication
    Observations of the 599 Hz Accreting X-Ray Pulsar IGR J00291+5934 during the 2004 Outburst and in Quiescence
    We report on optical and near-infrared observations obtained during and after the 2004 December discovery outburst of the X-ray transient and accretion-powered...
  • Publication
    Observations of the Lensed Quasar Q2237+0305 with CanariCam at GTC
    We present new mid-IR observations of the quadruply lensed quasar Q2237+0305 taken with CanariCam on the Gran Telescopio Canarias. Mid-IR emission by hot dust...
  • Publication
    Observations of the quiescent X-ray transients GRS 1124-684 (=GUMus) and Cen X-4 (=V822Cen) taken with ULTRACAM on the VLT
    We present high time-resolution multicolour optical observations of the quiescent X-ray transients GRS 1124-684 (=GUMus) and Cen X-4 (=V822Cen) obtained with...
  • Publication
    On the Cooling Tails of Thermonuclear X-ray Bursts: The IGR J17480-2446 Link
    The neutron star transient and 11 Hz X-ray pulsar IGR J17480-2446, recently discovered in the globular cluster Terzan 5, showed unprecedented bursting activity...