Astrophysical: Neutron stars

  • Publication
    Observational properties of accretion discs: Precessing and warped?
    Over the last 40 years, X-ray astronomy missions have revealed long-term, superorbital periods in a variety of X-ray binaries. These modulations can provide...
  • Publication
    Observations of Cygnus X-2 with IUE: Ultraviolet results from a multiwavelength campaign
    The observations of the low-mass x ray binary, Cyg X-2, taken with the International Ultraviolet Explorer (IUE) in a campaign conducted in June and October of...
  • Publication
    On the presence of two discs in the X-ray/Be binary A 0535 + 26/HDE 245770
    The analysis of the efficiency of accretion in the X-ray binary system A 0535 + 26/HDE 245770 and of the specific angular momentum of the matter accreted during...
  • Publication
    Optical and hard X-ray detections of an outburst from Aquila X-1
    We report a new outburst from the neutron star X-ray transient Aquila X-1. Optical monitoring with the Faulkes Telescopes North and South show a rise above...
  • Publication
    Optical and Near-IR Observations of the Current Outburst of Aql X-1
    As part of a monitoring campaign of quiescent and outbursting low-mass X-ray binaries with the CTIO/SMARTS telescopes and the Faulkes telescopes , we report...
  • Publication
    Optical and NIR observations of XTE J1739-285
    We report optical and near-infrared (NIR) observations of the field containing the neutron star X-ray transient XTE J1739-285 (IAUC #7300, ATel #622). The...
  • Publication
    Optical counterpart to IGR J17098-3628
    Following the recent report of a possible radio counterpart to the X-ray transient IGR J17098-3628 (ATEL #490), we re-investigated our Magellan I-band exposures...
  • Publication
    Optical decline of HETE J1900.1-2455
    Following the recently reported decline of the X-ray flux from the millisecond pulsar HETE J1900.1-2455 (Galloway et al. 2007, ATel #1086), we acquired images...
  • Publication
    Optical Outburst of AQL X-1
    We report YALO consortium observations using the Yale 1-m telescope at CTIO and observations with the 48" telescope at the Whipple Observatory: Aql X-1 = V1333...