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| Miscellaneous :
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Grupe et al. 2009 ATel
2075:
- Swift observations during a flare
- steadily decaying over the first orbit of observation
- Spectrum fitted with an absorbed power law with
Γ=0.56 and NH=8.1 x 1022 cm-2
- No USNO-B1 counterparts, but one 2MASS counterpart
with J=14.631, H=12.423, K=11.275.
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Corbet et al. 2010 ATel
2588:
- ~10 day period in long term Swift/BAT (15-100 keV) light curve
- Source mean flux ~1.3 mCrab light curve
fitted with a sine wave
Tmax (MJD) = 54,256.08 + n x 10.076
Tmax is the time of maximum flux, with a 100% flux
modulation
- No pulsation at shorter period when lookin at an
XRT light curve with 5s resolution
- 10 d period interpretred as orbital period=> HMXB
- Source is intrinsically absorbed consistent
with HMXB powered by wind accretion
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Fiocchi et al. 2010:
- Analysis of 10 Ms of ISGRI light curve data
- Quiescent emission < 2.5 × 10-12 erg/s/cm^2
- Two strong outbursts detected:
on 19 February, 2005 (53420.65 MJD), lasting about 1 hour; and the second
on 28 January, 2009 (54859.99 MJD), lasting about 3.5 hours.
- Several smaller outbursts (4-5 sigma) lasting several minutes to
hours also reported
- All show similar spectral shapes in the ISGRI range, only normalisation
changes
- 2MASS J16323791-4723409 as the most likely candidate counterpart in
the IR.
- With a dynamic range of over 170 + sporadic emission behavior
conclude that IGR J16328-4726 is a new member of the class of
SFXTs.
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Bozzo et al. 2012 (A&A):
- XMM-Newton observation
- Spectral analysis
- Source is an SFXT
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Fiocchi et al. 2012 :
- Analysis of INTEGRAL and Beppo-SAX observations
- Confirm that the source is an SFXT with an OB type companion
- Assuming a clump as the origin of an observed flare => a mass
of 4e22g and a radius of 4.4E6 km for the clump
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Coleiro et al. (2013) :
- NTT/Sofi NIR Spectroscopy
- Several lines in spectra among which Br(7-4), N III, CIII in emission and He I in absorption
- O8 Iaf or more probably O8 Iafpe companion
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Romano et al. 2014(A&A):
- Study of long term Swift/XRT monitoring
- Behaviour similar to other SFXTs with 61% inactivity duty cycle, and a dynamic range
of ~750 during bursts
- Probably intermediate SFXT (lower duty cycle compared to other members of this class)
- No correlation between duty cycle and orbital period
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