Astrofísicas: Acreción

  • Publicación
    Rapid optical and X-ray timing observations of GX339-4: multicomponent optical variability in the low/hard state
    A rapid timing analysis of Very Large Telescope (VLT)/ULTRACAM (optical) and RXTE (X-ray) observations of the Galactic black hole binary GX339-4 in the low/hard...
  • Publicación
    Recent activity of the Be/X-ray binary system SAX J2103.5+4545
    Aims: We present a multiwavelength study of the Be/X-ray binary system SAX J2103.5+4545 with the goal of better characterizing the transient behaviour of this...
  • Publicación
    Reconstructing the mass accretion histories of nearby red nuggets with their globular cluster systems
    It is generally recognized that massive galaxies form through a combination of in-situ collapse and ex-situ accretion. The in-situ component forms early, where...
  • Publicación
    Recovery of the X-ray polarisation of Swift J1727.8−1613 after the soft-to-hard spectral transition
    We report on the detection of X-ray polarisation in the black-hole X-ray binary Swift J1727.8−1613 during its dim hard spectral state by the Imaging X-ray...
  • Publicación
    Refined Orbital Solution and Quiescent Variability in the Black Hole Transient GS 1354-64 (= BW Cir)
    In Casares et al. we presented the first radial velocity curve of the companion star to BW Cir which demonstrates the presence of a black hole in this...
  • Publicación
    Resolving the Innermost Region of the Accretion Disk of the Lensed Quasar Q2237+0305 through Gravitational Microlensing
    We study three high magnification microlensing events, generally recognized as probable caustic crossings, in the optical light curves of the multiply imaged...
  • Publicación
    Revealing the inner workings of the lensed quasar SDSS J1339+1310: Insights from microlensing analysis
    Aims. We aim to unveil the structure of the continuum and broad-emission line (BEL) emitting regions in the gravitationally lensed quasar SDSS J1339+1310 by...
  • Publicación
    Revealing the Nature of the ULX and X-Ray Population of the Spiral Galaxy NGC 4088
    We present the first Chandra and Swift X-ray study of the spiral galaxy NGC 4088 and its ultraluminous X-ray source (ULX N4088-X1). We also report very long...