Astrofísicas: Estrellas de neutrones

  • Publicación
    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...
  • Publicación
    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...
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    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...
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    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...
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    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...
  • Publicación
    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...
  • Publicación
    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...
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    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...
  • Publicación
    Optical photometry and spectroscopy of HETE J1900.1-2544
    We report optical photometry and spectroscopy of the candidate optical/NIR counterpart (ATEL #526, #533) to the millisecond X-ray pulsar HETE J1900.1-2455 (ATEL...