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2013•UvA-DARE (University of Amsterdam)Open access

Swift/XRT detection of an active X-ray transient near the Galactic center

Nathalie Degenaar, Rudy A. D. Wijnands, Mark T. Reynolds, Jon M. Miller, J. A. Kennea, Neil A. Gehrels

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Abstract

Daily monitoring observations of the Galactic center performed with the Swift/XRT (Atel #5006; see link below) reveal that in addition to the new magnetar SGR J1745-29 (Atels #5009,#5011, #5020, #5032, #5037, #5046, #5053; Kennea et al. 2013; Mori et al. 2013) a transient X-ray source located ~20" north of Sgr A* is currently active. This object is clearly detected during ~1.0 ks PC mode observations obtained on 2013 May 15, 16, 18 and 19, at count rates of ~(1.5-5.0)E-2 counts/s.

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What this paper is about

Daily monitoring observations of the Galactic center performed with the Swift/XRT (Atel #5006; see link below) reveal that in addition to the new magnetar SGR J1745-29 (Atels #5009,#5011, #5020, #5032, #5037, #5046, #5053; Kennea et al. 2013; Mori et al. 2013) a transient X-ray source located ~20" north of Sgr A* is currently active. This object is clearly detected during ~1.0 ks PC mode observations obtained on 2013 May 15, 16, 18 and 19, at count rates of ~(1.5-5.0)E-2 counts/s.

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Available abstract

Daily monitoring observations of the Galactic center performed with the Swift/XRT (Atel #5006; see link below) reveal that in addition to the new magnetar SGR J1745-29 (Atels #5009,#5011, #5020, #5032, #5037, #5046, #5053; Kennea et al. 2013; Mori et al. 2013) a transient X-ray source located ~20" north of Sgr A* is currently active. This object is clearly detected during ~1.0 ks PC mode observations obtained on 2013 May 15, 16, 18 and 19, at count rates of ~(1.5-5.0)E-2 counts/s.

Key concepts: Galactic Center, Magnetar, Physics, Swift, Astrophysics, Transient (computer programming), X-ray, Center (category theory)

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