Astrofísicas: Acreción

  • Publicación
    Dynamical evidence for a black hole in the X-ray transient QZ VUL (=GS 2000+25)
    We report the first spectroscopic detection of the secondary star in the X-ray transient QZ Vul (=GS 2000+25). Cross-correlation of individual spectra against K...
  • Publicación
    Dynamical mass of the white dwarf in XY Ari: a test for intermediate polar X-ray spectral models
    We present a dynamical study of the eclipsing intermediate polar XY Ari based on time-resolved near-infrared spectroscopy obtained with the EMIR spectrograph on...
  • Publicación
    Dynamical modelling of CXOGBS J175553.2-281633: a 10 h long orbital period cataclysmic variable
    We present modelling of the long-term optical light and radial velocity curves of the binary stellar system CXOGBS J175553.2-281633, first detected in X-rays in...
  • Publicación
    Echoes from the companion star in Sco X-1
    We present simultaneous X-ray (RXTE) and optical (ULTRACAM) narrow-band (Bowen blend/HeII and nearby continuum) observations of Sco X-1 at 2-10 Hz time...
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    Erratum: A novel black hole mass scaling relation based on coronal gas, and its dependence with the accretion disc
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    Erratum: Black hole masses of tidal disruption event host galaxies II
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    Estimate of the Accretion Disk Size in the Gravitationally Lensed Quasar HE 0435–1223 Using Microlensing Magnification Statistics
    We present a measurement of the accretion disk size of the quadruple lensed quasar HE 0435–1223 from well-sampled 13-year COSMOGRAIL optical light curves. Using...
  • Publicación
    Events leading up to the 2015 June Outburst of V404 Cyg
    On 2015 June 15 the burst alert telescope (BAT) on board Swift detected an X-ray outburst from the black hole (BH) transient V404 Cyg. We monitored V404 Cyg for...
  • Publicación
    Evidence for a black hole in the historical X-ray transient A 1524-61 (= KY TrA)
    We present Very Large Telescope spectroscopy, high-resolution imaging, and time-resolved photometry of KY TrA, the optical counterpart to the X-ray binary A...