Astrophysical: Black hole physics

  • Publication
    A tool to separate optical/infrared disc and jet emission in X-ray transient outbursts: the colour-magnitude diagrams of XTE J1550-564
    It is now established that thermal disc emission and non-thermal jet emission can both play a role at optical/infrared (OIR) wavelengths in X-ray transients...
  • Publication
    A Wildly Flickering Jet in the Black Hole X-Ray Binary MAXI J1535–571
    We report on the results of optical, near-infrared (NIR), and mid-infrared observations of the black hole X-ray binary candidate (BHB) MAXI J1535–571 during its...
  • Publication
    An Evolving Compact Jet in the Black Hole X-Ray Binary MAXI J1836–194
    We report striking changes in the broadband spectrum of the compact jet of the black hole transient MAXI J1836–194 over state transitions during its discovery...
  • Publication
    An infrared FWHM-K<SUB>2</SUB> correlation to uncover highly reddened quiescent black holes
    Among the sample of Galactic transient X-ray binaries (SXTs) discovered to date, about 70 have been proposed as likely candidates to host a black hole. Yet...
  • Publication
    An underlying clock in the extreme flip-flop state transitions of the black hole transient Swift J1658.2-4242
    Aims: Flip-flops are top-hat-like X-ray flux variations, which have been observed in some transient accreting black hole binary systems, and feature...
  • News
    Astronomers find a black hole which rotates highly inclined to its orbit
    Astronomers have found a black hole which challenges current theoretical models for the formation of these compact objects, using telescopes at the Roque de los...
  • Publication
    Black hole masses and starbursts in X-shaped radio sources
    It has been suggested that the X-shaped morphology observed in some radio sources can reflect either a recent merger of two supermassive black holes (SMBHs) or...
  • Publication
    Black hole masses for 14 gravitationally lensed quasars
    Aims: We have estimated black hole masses (M BH) for 14 gravitationally lensed quasars using Balmer lines; we also provide estimates based on MgII and CIV...
  • Publication
    Black Hole Powered Nebulae and a Case Study of the Ultraluminous X-Ray Source IC 342 X-1
    We present new radio, optical, and X-ray observations of three ultraluminous X-ray sources (ULXs) that are associated with large-scale nebulae. We report the...