IGR J19552+0044

Other name =

Type Distance Radio Counterpart Infrared/Optical Counterpart
R.A. (J2000) Dec. (J2000) References R.A. (J2000) Dec. (J2000) References
CV (IP?) ~250 pc USNO A2.0 0900_17070143 Masetti et al. 2010 (A&A)
Published Papers
Miscellaneous :
Masetti et al. 2010 (A&A):
  • Optical spectroscopy of the counterpart
  • R=16, Av ~ 0
  • Balmer emission lines up to Hδ at z=0
  • Strength of He II emission line => CV of probable IP type
  • d ~ 250 pc
Bernardini et al. 2013(MNRAS):
  • XMM-Newton & Swift broad band spectral and timing analysis+Optical and IR analysis
  • Variable X-ray source: 1.69 h and 1.38h periodic variabilities, plus large amplitude variability on timescale 11h
  • X-ray spectrum well fitted by multi-temperature plasma, with kT=36 keV
  • Interstellar and local absorption + partial absorber with covering factor 53%
  • MWD=0.8 Msun with very low accretion rate below the orbital period gap
  • Magnetic CV, pre-polar or IP
Thornstensen & Halpern 2013 (ApJ):
  • Optical observations => spectra generally similar to those of Masetti
  • Possible short but ambiguous orb. period at ~84 min
  • No pulse period detected
  • Source could be a polar

Last updated 9 october 2013

Jerome Rodriguez