Astrofísicas: Estrellas de neutrones

  • Publicación
    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...
  • Publicación
    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...
  • Publicación
    Faulkes Telescope monitoring of the current outburst of IGR J00291+5934
    As part of an optical monitoring project of low-mass X-ray binaries (
  • Publicación
    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...
  • Publicación
    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...
  • Publicación
    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...
  • Publicación
    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...
  • Publicación
    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...
  • Noticia
    La erupción de una estrella de neutrones revela la naturaleza de fenómenos solo observados en agujeros negros
    Un equipo científico internacional, liderado por el Instituto de Astrofísica de Canarias (IAC), ha encontrado una estrella de neutrones que roba materia a una...