IGR J12562+2554

Other name =

Type Redshift Radio Counterpart Infrared/Optical Counterpart
R.A. (J2000) Dec. (J2000) References R.A. (J2000) Dec. (J2000) References
AGN Sey 1 (tentative) z=1.199 SDSS J125610.42+260103.5 Fiocchi et al. 2010 (ApJ)
Published Papers
Miscellaneous :
Fiocchi et al. 2010 (ApJ):
  • Chandra observation => several possible counterparts.
  • Brightest and hardest source is within the 99% IBIS error box
  • listed as a possible Quasar at z=1.2
  • Spectrum <=> absorbed power law with NH galactic and Γ=1.7
  • Extrapolated hard X-ray flux below IBIS=> either variable source or highly absorbed
  • Source reported in USNO B1.0 catalogue with variable magnitudes
Masetti et al. 2012 (A&A):
  • Optical spectroscopy of USNO-A2.0 1125_06617847 (tentative counterpart)
  • Source is a Sey 1 at z=1.199
  • MBH=90 x 107 Msun

Last updated 30 June 2010

Jerome Rodriguez