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| Miscellaneous :
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Tomsick et al. 2009 :
- Chandra observation
- Spectrum = absorbed powerlaw, NH=15.6 x 1022
cm-2, Γ=0.23
- 2MASS counterpart has J=11.38, H=9.53, Ks=8.44
- Compatible with DENIS source DENIS J175834.5-212321 with similar IR
mag and I=15.26
- Candidate absorbed HMXB
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Krimm et al. 2009 ATel 2156:
- Swift observation of an outburst
- Confirms associations proposed in Tomsick et al.
- Spectrum fitted with a power law with Γ=1.14 and intrinsic
NH=1.11 x 1023 cm-2
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Sanchez-Fernandez et al. 2009 ATel 2194:
- Renewed activity seen with INTEGRAL and Swift/BAT
- Flux of 11.2 mCrab in the combined observations from
Aug 31 - Sep 6.
- The flux is rather stable over the last 2 weeks.
- 18-150 keV spectra fitted with a power-law with Γ=3.0
- Assuming stable spectrum since the Swift/XRT possible
presence of a cut-off in the spectrum in the 10-20 keV range:
spectrum well fitted with cut-off pl (Γ=1.5 Ecut~20 keV),
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Coleiro et al. (2013) :
- NTT/Sofi NIR Spectroscopy, and photometry
- Only Br(7-4) emission line detected.
- SED well fitted with 2 absorbed black bodies => R*/D~5.5 Rsun/kpc, dust temp=2033 K, Av~14
- Supergiant companion star
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