Astrophysical: Black holes

  • Publication
    The NIR counterpart to XTE J1747-274(=IGR J17473-2721)
    We report follow-up observations confirming the near-infrared (NIR) counterpart to the X-ray transient XTE J1747-274/IGR J17473-2721 (ATEL #467, #498). A Ks=16...
  • Publication
    The omnipresent flux-dependent optical dips of the black hole transient Swift J1357.2−0933
    Swift J1357.2-0933 is a black hole transient that is of particular interest due to the optical recurrent dips found during its first two outbursts (in 2011 and...
  • Publication
    The Optical Counterpart to XTE J1817-330.
    We report the counterpart to the X-ray transient and black hole candidate XTE J1817-330 (ATEL #714). Our observations consist of a series of 5s and 10s g'-band...
  • Publication
    The orbital period, black hole mass, and distance to the X-ray transient GRS 1716-249 ( =N Oph 93)
    We present evidence for a 0.278(8) d ( =6.7 h) orbital period in the X-ray transient GRS 1716-249 (=N Oph 93), based on a superhump modulation detected during...
  • News
    The outburst of a neutron star reveals the nature of phenomena only observed in black holes
    An international scientific team led by the Instituto de Astrofísica de Canarias (IAC) found a neutron star that captures matter from a companion star with a...
  • Talk
    The quest for axions
    We introduce the strong CP problem and the existence of the Axion as a possible solution. We discuss the possibility that axions are the dark matter of the...
  • Talk
    The role of massive black hole recoil in galaxy evolution
    The coalescence of a massive black hole (MBH) binary leads to the gravitational-wave recoil of the system and its ejection from the galaxy core. We have carried...
  • Talk
    The Square Kilometre Array: At the Frontiers of Astronomy, Physics, and Astrobiology
    The Square Kilometre Array is intended to be the centimeter- and meter-wavelength telescope for the 21st Century. Originally proposed as the "hydrogen telescope...
  • Publication
    The Tarantula Massive Binary Monitoring. VI. Characterisation of hidden companions in 51 single-lined O-type binaries: A flat mass-ratio distribution and black-hole binary candidates
    Context. Massive binaries hosting a black hole (OB+BH) represent a critical phase in the production of BH mergers in the context of binary evolution. In spite...