Astrofísicas: Estrellas de neutrones

  • Charla
    Matter under extreme conditions and Heavy Ion Colliders
    According to Quantum Chromodynamics, which is the well established theory of strong interactions, quark and gluons are forced to live inside hadrons because of...
  • Publicación
    Mini-outburst of Aql X-1
    We report YALO consortium observation of a mini-outburst of Aquila X-1 = V1333 Aql, which occurred between July 04.27 and 07.29 UT. This X-ray binary outbursts...
  • Publicación
    Multiwavelength observations of XTE J1859+226
    On March 2 06:00 UT the transient source XTE J1859+226 had faded considerably to R=18.0 in the optical (IAC) and to a flux of about 13 mCrab (RXTE ASM). However...
  • Publicación
    Near-IR and Optical Observations of the Ongoing Outburst of SAX J1808.4-3658
    Following the report of a new outburst of the accreting millisecond pulsar SAX J1808.4-3658 by Markwardt and Swank (ATel #1728), the source was observed using...
  • Publicación
    New constraints on neutron star models of gamma ray bursts. I - EXOSAT observations of two gamma ray burst error boxes
    Two EXOSAT observations of gamma-ray burst error boxes and their possibly associated optical transients are discussed. No point source was detected in either...
  • Publicación
    New NGC 6440 transient declining rapidly
    The new transient LMXB in NGC 6440 (CXOGlb J174852.7-202124; Atel #2139) is declining rapidly. RXTE observed NGC 6440 on July 30 (18:47 to 19:26 TT). The PCA...
  • Publicación
    New outburst of the accreting millisecond X-ray pulsar NGC 6440 X-2 and discovery of a strong 1 Hz modulation in the light-curve
    On June 11th, 2010, RXTE/PCA galactic bulge scan observations showed an increase in activity from the globular cluster NGC 6440. Two accreting millisecond X-ray...
  • Publicación
    New outburst of the accreting-millisecond X-ray pulsar NGC 6440 X-2
    On Friday 19th, 2010 (19h 13m 26s UT), the RXTE galactic bulge scans detected a flux excess in the direction of the globular cluster NGC 6440. This globular...
  • Publicación
    New outbursts of two faint X-ray transients (GRS 1741.9-2853 and XMM J174457-2850.3) located in the Galactic center region
    The Galactic Center region was observed in a series of 7 pointings with the Chandra X-ray Observatory on 5 June 2005 01:44-13:08 UTC. During these observations...