IGR J18256-1035

Other name = CXOU J182543.8-103501

Type Mass Radio Counterpart Infrared/Optical Counterpart
R.A. (J2000) Dec. (J2000) References R.A. (J2000) Dec. (J2000) References
HMXB (?)
18h 25m 43.83s
-10° 35' 01.3" Masetti et al. 2013
(see also Zolotukhin et al. 2015)
Published Papers
Miscellaneous :
Landi et al. 2007 ATel 1273:
  • 1 USNO B1.0 source within Swift error box R~18
  • Unabsorbed powerlaw Γ~1
  • 2-10 keV flux = 2x10-12 erg/cm2/s
Tomsick et al. 2008:
  • Association with USNO B1.0 source not confirmed by refinement of the X-ray position
  • No clear counterparts, although IR emission at source position. J>~15
  • Absorbed power law, NH=3.1x1022 cm-2, Γ= 0.1, Unabs. 0.3-10 keV flux=2.9 e-12 erg/cm2/s
  • Nature of source unclear
Masetti et al. 2013 (A&A):
  • Optical / NIR observation + spectroscopy of counterpart
  • Faint Hα emission, optical spectral shape and non-detection in 2MASS => LMXB
Zolotukhin & Revnivtsev (2015) (MNRAS):
  • Counterpart in UKIDSS catalogue at RA=18h 25m 43.836s Dec=-10° 35' 02.09"
  • Glimpse object also found but thought not to be associated and is a blend of 3 sources
  • SED => source distance larger than 5-10 kpc
  • Tentative HMXB, although foreground B star not excluded
  • J=16.88; H=16.16; K=15.63

Last updated 4 March 2015

Jerome Rodriguez