IGR J12319-0749

Other name = 1RXS J123158.3-074705

Type Redshift Radio Counterpart Infrared/Optical Counterpart
R.A. (J2000) Dec. (J2000) References R.A. (J2000) Dec. (J2000) References
Sey 1 AGN
Extreme Blazar
z=3.12 NVSS J123157-074717 Bassani et al. 2012 UNSO-A2.0 0750_07870270 Masetti et al. 2012
Published Papers
Miscellaneous :
Masetti et al. 2012 (A&A):
  • Optical spectroscopy of UNSO-A2.0 0750_07870270, suggested optical counterpart
  • Sey 1 at z=3.12
Bassani et al. 2012 (A&A):
  • Swift observation => refinement of the position
  • Source position compatible with 1RXS J123158.3-074705, and NVSS J123157-074717 confirming the z=3.12 QSO nature of this object
  • Spectral analyses of the individual spectra and a of the combined Swift+INTEGRAL averaged spectra =>power law with an high energy cut-off (Γ=1.24 and Ecut=24.5 keV although with large uncertainties).
  • Flat radio spectrum QSO, + properties of a broad line AGN; Classified as an extreme blazar.
Frey et al. 2013 (A&A):
  • Study of the radio strucuture of the source with VLBI/EVN
  • =>85 mJy radio source with sub milliarcsec size
  • slightly inverted radio spectrum
  • Assuming Γ=10 jet inclination θ=14°ree;
  • All results give strong additional support for a blazar nature

Last updated 27 March 2013

Jerome Rodriguez