Astrophysical: Pulsars

  • Publication
    Amendment to ATel 1859: CXOM31 J004245.9+411036 is Previously Reported XMMU J004245.9+411036
    The object CXOM31 J004245.9+411036, reported as a new X-ray source in ATel #1859 from M31 Chandra observations, is the previously reported XMMU J004245.9+411036...
  • Publication
    An Accreting Millisecond Pulsar with Black Hole-like X-Ray Variability: IGR J00291+5934
    IGR J00291+5934 is one of the seven accreting millisecond pulsars (AMPs) discovered so far. We report on the aperiodic timing and color analysis of its X-ray...
  • News
    Astronomers discover a “black widow” binary star system with the shortest orbital period known
    The research, carried out by an international group incuding the Instituto de Astrofísica de Canarias(IAC) and the University of La Laguna (ULL) also show that...
  • Publication
    Astrophysical parameters and orbital solution of the peculiar X-ray transient IGR J00370+6122
    Context. BD + 60° 73 is the optical counterpart of the X-ray source IGR J00370+6122, a probable accretion-powered X-ray pulsar. The X-ray light curve of this...
  • Publication
    Astrophysical Parameters of LS 2883 and Implications for the PSR B1259-63 Gamma-ray Binary
    Only a few binary systems with compact objects display TeV emission. The physical properties of the companion stars represent basic input for understanding the...
  • Publication
    Astrophysical parameters of the peculiar X-ray transient IGR J11215-5952
    Context. The current generation of X-ray satellites has discovered many new X-ray sources that are difficult to classify within the well-described subclasses...
  • Publication
    ATCA radio observations of Swift J1756.9-2508 in outburst
    Swift J1756.9-2508 was discovered by the X-ray satellite Swift during an outburst in 2007 (ATEL #1105) and recognized immediately as an accretion-driven...
  • Publication
    Broad relativistic iron line observed in SAX J1808.4-3658 by Suzaku
    The accreting millisecond X-ray pulsar SAX J1808.4-3658 recently exhibited another outburst in September and October 2008 (ATel #1728). During this outburst, on...
  • Publication
    Chandra Detection of a New Transient X-Ray Source in M31: CXOM31 J004245.9+411036; and Non-Detection of SWIFT J004320.5+411528
    We report the discovery of a previously unseen X-ray source detected in a 5ks Chandra/ACIS observation starting on 2008-11-27.72 UT as part of our ongoing...