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New Swift/XRT observations confirm that the active Galactic center transient is AX J1745.6-2901

ATel #5226; N. Degenaar (Michigan), J. A. Kennea (PSU), R. Wijnands (UvA), M. T. Reynolds, J. M. Miller (Michigan) and N. Gehrels (GSFC), on behalf of a larger collaboration
on 25 Jul 2013; 17:09 UT
Credential Certification: Nathalie Degenaar (degenaar@umich.edu)

Subjects: X-ray, Binary, Neutron Star, Transient

Referred to by ATel #: 5246, 5332, 5847, 7023, 8649, 10323, 10900

Ongoing Swift/XRT monitoring observations of the Galactic center have allowed us to refine the position of the X-ray transient that is currently active (ATel #5222). Utilizing the position-enhancement algorithm described by Goad et al. (2007) and Evans et al. (2009), we find:

R.A. (J2000) = 17:45:35.64
Dec. (J2000) = -29:01:35.9

with an uncertainty of 2.2" (90% confidence). These coordinates are 1.8" from the Chandra counterpart of AX J1745.6-2901 (CXOGC J174535.6-290133; ATel #1513), hence fully consistent. This confirms that the thermonuclear burster and eclipsing neutron star low-mass X-ray binary AX J1745.6-2901 has entered a new accretion outburst.

The Swift/XRT Monitoring Campaign Website can be found at: http://www.swift-sgra.com

Evans et al. 2009, MNRAS 397, 1177
Goad et al. 2007, A&A, 476, 1401