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| Miscellaneous :
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Landi et al. 2008 ATel 1538:
- In IBIS error :
- 3srces in USNO B1.0 2 of which in 2MASS
- X-ray => very soft spectrum and F2-10keV=7x10-14 erg/cm2/s
- 30" outside IBIS error:
- 1RXS J110927.4-650245
- X-ray well described by an unabsorbed power law
with Γ=1.2 and a F2-10 keV
=2.7 x 10-12 erg/cm2/s.
- Hard X-ray spectrum and higher
flux =>most likely counterpart of the INTEGRAL object
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Parisi et al. 2008 ATel 1540:
- Optical spectroscopy of the XRT source within IBIS error
(USNO A2.0 U00225_10613596)
- Continuum typical of M Giant
- Not necessarily right counterpart but this source is a
symbiotic star
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Masetti et al. 2009:
- Optical spectroscopy, R~17.2, Av=1.23
- d<20 kpc
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Tomsick et al. 2009:
- Chandra observation =>position consistent with Swift for the 1RXS source
- Spectra well fitted with absorbed power law: NH=0.65x1022
cm-2 Γ=1.43
- No counterpart at IR and Optical wavelengths (from catalogues) but 2MASS Ks image
shows a possible source
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