Astrophysical: Neutron stars

  • Publication
    EXOSAT observations of two gamma-ray burst sources
    EXOSAT observations of the 19 Nov. 1978 and 25 Mar. 1979b gamma bursters are presented, for the 0.02 - 2.5 keV energy range. No source was detected in either...
  • Publication
    Extinction as a tool to find distances to X-ray sources
    Finding distances in astronomy is notoriously difficult. With accurate optical spectroscopy, both the distance to and extinction (reddening) of normal stars can...
  • Publication
    Faulkes Telescope monitoring of the current outburst of IGR J00291+5934
    As part of an optical monitoring project of low-mass X-ray binaries (
  • Publication
    First Detection of the X-ray Burster 2S 1711-339 in Quiescence and a Suggested Optical Counterpart.
    We report on a Chandra observation of the transient low-mass X-ray binary and type-I X-ray burst source 2S 1711-339 (Carpenter et al. 1977,MNRAS,179,270; Wilson...
  • Publication
    Further Chandra observations of SAX J1747.0-2853 and the region around Sgr A*
    On 20-21 October 2005, the remaining six Chandra/HRC-I observations (as mentioned in ATEL #637) were performed as part of the XMM-Newton/ Chandra monitoring...
  • Publication
    GX 340+0: In and Out of Focus
    The Nuclear Spectroscopic Telescope Array (NuSTAR) enables detailed high-energy X-ray observations from 3─79 keV, but its performance can be constrained by...
  • Publication
    Improved position of the new X-ray transient XTE J1637-498
    Following the discovery of the new X-ray transient XTE J1637-498 (Atel #1699), we obtained a short (nearly 1 ksec) observation using the Swift/XRT in PC mode on...
  • Publication
    Indirect evidence for an active radio pulsar in SAX J1808.4-3658 during quiescence
    Millisecond radio pulsars are neutron stars that have been spun-up by the transfer of angular momentum during the low-mass X-ray binary phase. The transition...
  • Publication
    Li abundances in late-type companions to neutron stars and black hole candidates
    Following our recent report of a strong Li lambda 6708 resonance line in the secondary of the black hole candidate V404 Cyg, we present here its detection in...