Monitoring the long outburst of the very-faint X-ray transient XMMU J174716.1-281048
ATel #4099; Melania Del Santo (INAF/IAPS), Patrizia Romano (INAF/IASF-Palermo), Lara Sidoli (INAF/IASF-Milano)
on 7 May 2012; 12:09 UT
Credential Certification: Melania Del Santo (melania.delsanto@iasf-roma.inaf.it)
Subjects: X-ray, Binary, Transient
Referred to by ATel #: 7293
XMMU J174716.1-281048 is a burster, very faint X-ray transient (VFXT), located at 0.9
degree off the Galactic Centre. It has been classified as the first "quasi-persistent" VFXT (Del Santo et al. 2007, A&A, 468, L17) showing a prolonged accretion episode of many years (ATel #1078).
In order to monitor this peculiar long outburst, we thus observe the source once per year.
A new ToO with Swift/XRT has been performed on 2012-05-06 16:44:24 UT
to 18:26:56 UT (2ks net exposure).
The source is still in outburst with a mean 0.2-10 keV
count rate of (3.0+/-0.5)E-02 counts/s, which is consistent with the flux reported last
year (ATel #3471).
The long-term light curve of XMMU J174716.1-281048 can be found
at http://www.ifc.inaf.it/~romano/ATels/XMMUJ174716.1_281048_xrt.html
We would like to thank the Swift Team for making these observations
possible, in particular N. Gehrels, the duty scientists as well as
the science planners.
