Astrophysical: Black holes

  • Publication
    Quiescent NIR and optical counterparts to candidate black hole X-ray binaries
    We present near-infrared and optical imaging of 15 candidate black hole X-ray binaries. In addition to quiescent observations for all sources, we also observed...
  • Publication
    Radio activity in H1743-322
    Following the detection of renewed activity in H1743-322 with Swift/BAT (Krimm et al., ATEL #2058), we triggered radio observations of the source using the VLA...
  • News
    RAFFAELLA MORGANTI: "The first image of a black hole was an important milestone for astrophysics"
    Radioastronomy is one of the branches of observational astrophysics which has experienced considerable growth in recent years. To study the universe at radio...
  • Publication
    Re-brightening of XMMSL1 J171900.4-353217
    We continued our Swift-XRT monitoring of the new very-faint X-ray source XMMSL1 J171900.4-353217 [ATel #2607, #2656]. Two new observations were obtained on Jun...
  • Publication
    Recent Chandra and Swift Observations of New X-ray Transients in M31
    We report recent observations of M31 taken with Chandra/ACIS-I on 2009-05-29.1 UT and with Swift/XRT on 2009-06-07.08 UT. In the 4ks Chandra/ACIS-I image, we...
  • Publication
    Renewed activity of the very faint X-ray transient CXOGC J174535.5-290124 and continued activity of the neutron-star X-ray transient SAX J1747.0-2853
    On 8-9 September 2006, a series of 7 XMM-Newton observations were performed as part of our XMM-Newton/Chandra monitoring campaign of the 1.7 square degree...
  • Publication
    Rotating ``black holes'' with holes in the horizon
    Kerr-Schild solutions of the Einstein-Maxwell field equations, containing semi-infinite axial singular lines, are investigated. It is shown that axial...
  • Publication
    RXTE detects X-ray bursts from Circinus X-1
    After the recent report of X-ray re-brightening (ATel #2608), RXTE has observed the peculiar neutron star X-ray binary Cir X-1 eleven times during the last two...
  • Publication
    Search for black holes and other new phenomena in high-multiplicity final states in proton-proton collisions at √{ s} = 13TeV
    A search for new physics in energetic, high-multiplicity final states has been performed using proton-proton collision data collected with the CMS detector at a...