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| Miscellaneous :
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Sazonov et al. 2008 :
- R~14 USNO B2 object has a spectrum typical of B3 star =>HMXB
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Bikmaev et al. 2008 :
- Optical spectroscopy confirms source is HMXB with a B star
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Masetti et al. 2009:
- Optical spectroscopy
- B3 V star
- d~5.8 kpc, Av=2.2
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Reig & Zezas 2013 (A&A):
- Optical monitoring, BVRI photometry and spectroscopic observations
- Optical counterpart is a BII Ve shell star at d~ 8.5 kpc
- Optical variability attributed to formation of equatorial disc around
the companion + development of a enhanced density perturbation revolving inside the
disc
- Formation and dissipitation of the disc witnessed
- System seen near edge-on
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Reig & Zezas 2014 (MNRAS):
- XMM-Newton observation
- Discovery of X-ray pulsations at 320.35s, with a fraction of
~45%
- 0.2-12 keV spectrum : black body (kT~ 0.11keV) plus power law
(Γ~1.02), modified by absorption (NH~1.08e22cm-2)
- Observed X-ray emission from accretion via low velocity
equatorial wind, since companion's decretion disc has vanished
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