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IGR J19552+0044 = 1RXS J195512.0+004547

Links to this object in VSX and in Swift BAT 157 month survey

A finding chart for IGR J19552

SkyView image of IGR J19552+0044 (see important notes).

Position
  • Equatorial: 19h55m12.48s, +00d45m36.4s (Gaia)
  • Galactic: l=41.04, b=-13.79
Finding Chart:
Masetti et al. (2010)
Brigntness:
Optical: G=15.9 (Gaia); X-rays: 1.5x10-11 ergs cm-2s-1 (BAT 157m; 14-195 keV), 1.3x10-11 ergs cm-2s-1 (4XMM-DR11)
IP Credential:
* (Doubtful): The dominant optical photometric (presumed spin) period is 2.8% shorter than the spectroscopic (orbital) period. It makes more sense to classify this as an asynchronous polar.
Periods:
  • Orbital: 0.05805525d = 1.393326 h = 5015.974 s from optical spectroscopy.
  • Spin: 0.0564506 d = 81.2889 m = 4877.33 s from optical photometry and in X-rays.
  • Others: 101.6 min and 11.4 hr periods in X-rays, spin-orbit side band in optical photometry.
Inclination:
?
Distance:
165.53 (164.02-167.44) pc (Gaia EDR3; parallax: 6.006+/-0.062 mas)

References

  1. Masetti et al. 2010 (optical identification)
  2. Bernardini et al. 2013 (X-rays)
  3. Thorstensen & Halpern 2013 (optical spectroscopy & photometry)
  4. Tovmassian et al. 2017 (optical photometry and spectroscopy)


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