IGR J14331-6112

Other name = (?)

Type Spectral Type Radio Counterpart Infrared/Optical Counterpart
R.A. (J2000) Dec. (J2000) References R.A. (J2000) Dec. (J2000) References
HMXB early B III or mid B V
14h 33m 08.33s (±0.1") -61o 15' 39.7" (±0.1") Masetti et al. 2008
Published Papers
Miscellaneous :
Landi et al. 2007 ATel 1273:
  • 1 USNO B1.0 source within Swift error box is a 2MASS object R~18
  • Unabsorbed power law component Γ=0.7
  • 2-10 keV flux = 4.5x10-12 erg/cm2/s
Masetti et al. 2008:
  • Optical spectroscopy is presented and detailed
  • R=18.1
  • Hα in emission
  • source is an HMXB with early BIII or mid B V companion
  • d~ 10 kpc
Tomsick et al. 2009:
  • Chandra observation => position consistent with the HMXB
  • Spectra well fitted with absorbed power law: NH=2.2 x1022 cm-2 Γ=0.34
  • Strong iron Kα emission line in X-ray spectrum, Ec=6.70 keV, width=0.27 keV; Eq width=945 eV
  • Discussion about presence of a soft excess
Coleiro et al. (2013) :
  • NTT/Sofi NIR Spectroscopy
  • Low S/N spectrum, but shows Br (7-4) emission line typical of Sg or Be star
  • No He I line => probable Be star

Last updated 09 october 2013

Jerome Rodriguez