IGR J17464-2811

Other name = XMMU J174716.1-281048

Type Mass Radio Counterpart Infrared/Optical Counterpart
R.A. (J2000) Dec. (J2000) References R.A. (J2000) Dec. (J2000) References
Candidate type I X-ray burster
Neutron star
Published Papers
Miscellaneous :
Brandt et al. 2006 ATel 970:
  • Probable type I X-ray burst seen with JEM X
  • Burst is FRED like in the 3-8 keV range; time constant of ~70 seconds
  • 8-30 keV band gradual rise over 25 seconds and exponential decay ~30 seconds
  • Peak flux 1.0 Crab in the JEM-X 3-30 keV band
  • Detected and localized with ISGRI up to 30 keV
Wijnands 2006 ATel 972:
  • Position consistent with that of XMMU J174716.1-281048
  • Closeness in time of the INTEGRAL and XMM-Newton observations => strengthens association
  • Transient nature and Type I burst => Neutron star LMXB
Del Santo et al. 2007 A&A:
  • Analysis of INTEGRAL data of X-ray burst
  • Decay times of 71.6s in the 3-6 keV range vs 7.3s in the 20-25 one, indicative of a spectral softening typical of type I X-ray bursts.
  • Double peaked pulse profile => Eddington limited burst showing photospheric expansion.
  • Possible distance of 2.8-4.6 kpc, prefered value of 3 kpc.
Degenaar & Wijnands, 2007 ATel 1078:
  • Swift/XRT observations clearly detected the source
  • Source spectrum fitted with an absorbed powerlaw model (nH=9.0E22 cm-2, photon index=2.25), => unabsorbed flux of 7.4E-12 erg/cm2/s
  • Conclude that the source is a transient system with a quiescent emission at least two orders of magnitude lower than during periods of activity.
  • XMMU J174716.1-281048 is a very-faint X-ray transient.
  • Suggestion that the system is undergoing a prolonged accretion episode of many years strenghtened by Swift detection at a flux similar to that of XMM
Degenaar et al. 2007, ATel 1136:
  • Chandra Obs. => spectrum= absorbed power law NH=9 x 1022 cm-2, Γ~2.2
  • 2-10 keV unabsorbed flux ~3.0 x 10-12 erg/cm2/s
  • Candidate counterpart in H-band image (SMART 1.3 m) with SNR 4.3 (MH=15.3)
Del Santo et al. 2007, ATel 1207:
  • Refine distance estimates based on INTEGRAL analysis of the radius expansion of X-ray burst => 8 kpc
Sidoli et al. 2008, ATel 1496:
  • Swift/XRT => quasi persistent behaviour
  • Duration of last outburst longer than 5 years
Zolotukhin & Revnivtsev 2015 (MNRAS):
  • 2 objects in UKIDSS GPS data => None associated with the IGR
  • J> 20.0; H> 18.7; K >17.5

Last updated 17 Nov 2014

Jerome Rodriguez