The transient IGR J17361-4441 in the globular cluster NGC 6388 an unusual very-faint transient X-ray binary or an outburst from an intermediate-mass black hole

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Authors
Publication date 26-08-2011
Journal The astronomer's telegram
Organisations
  • Faculty of Science (FNWI) - Anton Pannekoek Institute for Astronomy (API)
Abstract Gibaud et al. (2011, ATel #3565) reported the INTEGRAL discovery of a new transient, IGR J17361-4441, located in the Galactic globular cluster NGC 6388 (Ferrigno et al. 2011, ATel #3566). Swift/XRT has monitored this source from 16 to 25 August on a nearly daily basis (see ATel #3566 for the first observation). The 0.5-10 keV unabsorbed flux in those observations was roughly constant, typically (4-6)e-11 erg/s/cm^2, corresponding to a 0.5-10 keV X-ray luminosity of (6-9)e35 erg/s (for a distance of 11.5 kpc), making this source a very-faint X-ray transient (VFXT; see Wijnands et al.
Document type Article
Language English
Published at https://www.astronomerstelegram.org/?read=3595
Other links https://ui.adsabs.harvard.edu/abs/2011ATel.3595....1W/abstract
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