IGR J09026-4812

Other name = CXOU J090237.3-481334

Type Redshift Radio Counterpart Infrared/Optical Counterpart
R.A. (J2000) Dec. (J2000) References R.A. (J2000) Dec. (J2000) References
AGN/Sey 1 z=0.039
2MASS J09023731-4813339 Tomsick et al. 2007 ATel 1018
Published Papers
Miscellaneous :

Tomsick et al. 2007 ATel 1018:
  • spectrum represented by an absorbed power-law model with a flux of 5 x 10^-12 ergs/cm^2/s (0.3-10 keV, absorbed)
  • Preliminary results give NH = 2.2 x 1022 cm-2 and Gamma 2.7.
  • J = 15.57+/-0.08, H = 13.86+/-0.07, and K = 12.69+/-0.04
  • Likely HMXB due to brightness of IR counterpart
Tomsick et al. 2008:
  • No evidence for extension of the IR counterpart (as might be expected for such a bright IR source)=> probably Galactic
  • Absorbed power law, NH=1.9x1022 cm-2, Γ= 1.1, Unabs. 0.3-10 keV flux=13 e-12 erg/cm2/s
  • Using Ks=12.69 and AK=0.66-1.21 => d=6.3-8.1 kpc for a BO V star => L=8e34 x(d/7kpc)2 erg/s consistent with other IGR HMXBs
  • Supergiant => d=30-40 kpc and is therefore unlikely
Zurita Heras et al. 2009:
  • ESO/NTT observation => confirm 2MASS J09023731-4813339 as the counterpart
  • NIR images (JHKs) =>source is extended, and not Galactic.
  • Source spectrum shows three main emission lines identified as the HeI, HI Pa-β and Pa-α lines, typical in galaxies with an active galactic nucleus
  • Broadness of these lines => type 1 Seyfert galaxy
  • Redshift is z=0.0391(4).

Last updated 27 May 2009

Jerome Rodriguez