IGR J11098-6457

Other name = 1RXS J110927.4-650245 (?) or 1RXS J110944.4-645256

Type Spec. Type Radio Counterpart Infrared/Optical Counterpart
R.A. (J2000) Dec. (J2000) References R.A. (J2000) Dec. (J2000) References
USNO A2.0 U00225_10613596 Parisi et al. 2008ATel 1540
Published Papers
Miscellaneous :

Landi et al. 2008 ATel 1538:
  • In IBIS error :
    • 3srces in USNO B1.0 2 of which in 2MASS
    • X-ray => very soft spectrum and F2-10keV=7x10-14 erg/cm2/s
  • 30" outside IBIS error:
    • 1RXS J110927.4-650245
    • X-ray well described by an unabsorbed power law with Γ=1.2 and a F2-10 keV =2.7 x 10-12 erg/cm2/s.
    • Hard X-ray spectrum and higher flux =>most likely counterpart of the INTEGRAL object
Parisi et al. 2008 ATel 1540:
  • Optical spectroscopy of the XRT source within IBIS error (USNO A2.0 U00225_10613596)
  • Continuum typical of M Giant
  • Not necessarily right counterpart but this source is a symbiotic star
Masetti et al. 2009:
  • Optical spectroscopy, R~17.2, Av=1.23
  • d<20 kpc
Tomsick et al. 2009:
  • Chandra observation =>position consistent with Swift for the 1RXS source
  • Spectra well fitted with absorbed power law: NH=0.65x1022 cm-2 Γ=1.43
  • No counterpart at IR and Optical wavelengths (from catalogues) but 2MASS Ks image shows a possible source

Last updated 29 july 2009

Jerome Rodriguez