Astrophysical: Neutron stars

  • Publication
    Two New X-Ray Sources in M31 and M31GC J004234+405709 Observed by Chandra
    We report the discovery of two previously unseen X-ray sources detected in a 5ks Chandra/ACIS observation starting on 2008-10-13.15 UT as part of our ongoing...
  • Publication
    X-ray state change in 4U 1608-52
    The neutron star X-ray transient 4U 1608-52 is often in a state of outburst (e.g. ATel #1113); the Swift/BAT light curve shows three clear outburst peaks so far...
  • Publication
    X-ray Transients in M31
    Chandra observations on Jan 16, 2002 surveyed M31 with a series of 5 short (1ks) HRC images. Preliminary analysis yields the following info on new transients...
  • Publication
    X-ray Transients in M31
    On Nov 19, 2001, The Chandra X-ray Observatory surveyed M31 with 5 overlapping very short (1ks) HRC exposures and a single short (5ks) ACIS-S exposure...
  • Publication
    X-ray Transients in M31
    A bright X-ray transient was detected by Chandra on 2002 June 2 with a series of 5 HRC-I snapshots. The new source CXOU J004154.6+405648 (R.A.=00h41m54s.64, Dec...
  • Publication
    XTE J1751-305 going back to its quiescent state
    After the recent reports of activity of the accreting millisecond pulsar XTE J1751-305 (ATELs #1045, #1046 and #1051) we obtained another Swift/XRT (~4.3ksec)...