Astrofísicas: Agujeros negros

  • Charla
    Strong gravity, dense matter -- probing compact objects
    The matter within a few Schwarzschild radii of accreting neutron stars and black holes is moving under the influence of a strong gravitational field, and, in...
  • Publicación
    3 New X-Ray Transients in M31
    We report the discovery of 3 previously unseen X-ray point sources detected in a 5ks Chandra/ACIS observation starting on 2007-07-31.14 UT as part of our...
  • Publicación
    A 3.2 hr candidate orbital period for SWIFT J1753.5-0127
    We report time-resolved photometry of the optical counterpart to the black hole candidate SWIFT J1753.5-0127 (Palmer et al. 2005, ATel #546: Halpern et al. 2005...
  • Charla
    A black hole in Swift J1357.2-0933 obscured by an inner disc torus
    X-ray transients are binary systems composed by a 'normal' star which is transfering mass onto a compact object (either a black hole or a neutron star) through...
  • Publicación
    A Black Hole in XTE J1118+480
    Spectroscopic observations of this X-ray nova with the new 6.5-m MMT on Dec. 1 & 4 show that it contains a black hole primary of at least 6 solar masses. Our...
  • Charla
    A CLOSE LOOK INTO THE OUTBURST EVOLUTION OF BLACK HOLE X-RAY BINARIES
    X-ray observations performed by several missions during the last few decades have provided a very large data base on black hole X-ray binaries. Many of these...
  • Publicación
    A correlation between H α trough depth and inclination in quiescent X-ray transients: evidence for a low-mass black hole in GRO J0422+32
    We present a new method to derive binary inclinations in quiescent black hole (BH) X-ray transients (XRTs), based on the depth of the trough (T) from double...
  • Publicación
    A deep observation of the ultraluminous X-ray source IC 342 X-1
    Our recent detection of compact radio emission at the position of the ultraluminous X-ray source (ULX) IC 342 X-1 suggests the presence of an outflow in this...
  • Publicación
    A detailed non-LTE analysis of LB-1: Revised parameters and surface abundances
    Context. It has recently been proposed that LB-1 is a binary system at 4 kpc consisting of a B-type star of 8 M ☉ and a massive stellar black hole (BH) of 70 M...