IGR J01583+6713

Other name = (?)

Type Spectral type Radio Counterpart Infrared/Optical Counterpart
R.A. (J2000) Dec. (J2000) References R.A. (J2000) Dec. (J2000) References
HMXB with pulsar B2 IVe @ 4 kpc
01h 58m 18.44s +67d 13' 23.5" Halpern & Tyagi (2005, Atel 681)
Published Papers
Miscellaneous :

Kennea et al. 2005 Atel 673:
  • J=11.5 2MASS object @ 2.9 arcseconds from the XRT position.
  • also present in the USNO catalogue, with R=13.9 and B=15.3
  • NH~1023 cm-2
Halpern & Tyagi 2005 Atel 681):
  • most likely counterpart is a Be star 2.8 arcseconds from the XRT position.
  • also present in the USNO catalogue at B=14.98, R=13.24, and I=12.12.
  • optical spectrum presents strong H-alpha (EW ~ 7 nm) and weak H-beta (EW ~ 0.6 nm) emission lines, and diffuse interstellar bands.
Masetti et al. 2006:
  • confirm Be HMXB
  • distance 6.4 kpc
Kaur et al. 2008:
  • Optical and X-ray observations
  • Companion is B2 IVe.
  • distance estimate of 4 kpc.
  • X-ray spectra can either be fitted by an absorbed powerlaw or an absorbed black body with highly variable absorption
  • Possible detection of a pulse with period 469.2s.
  • Corbet diagram =>orbital period of 216 to 561 days.
Wang 2010:
  • Analysis of INTEGRAL observations
  • Did not find the potential pulse at 469s but instead found a pulsation at 5.47 hr.
  • IBIS spectra fitted with either a bremsstrahlung or a power law model
  • Claims for the detection of cyclotron absorption features at 35 and 62-64 keV => (In that case) kT=45 keV (bremss.), Γ=2.11 (power law) (outburst values)
  • B~4e12 G for the neutron star

Last updated: 22 June 2010

Jerome Rodriguez