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X-ray outburst of RX J0520.5-6932, confirmed as a Be/X-ray binary

Citation:

Vasilopoulos G, Maggi P, Sturm R, Haberl F, Pietsch W, Udalski A, Sasaki M, Immler S. X-ray outburst of RX J0520.5-6932, confirmed as a Be/X-ray binary. [Internet]. 2013;4748:1.

Abstract:

A Swift observation performed on 2013 January 13 as part of the LMC UV survey (PI: S. Immler) detected the high-mass X-ray binary candidate RX J0520.5-6932 in a moderately bright X-ray outburst. Assuming a power-law spectrum with a photon index of 0.9 and absorption of 1021 cm-2, we derive a 0.2-12 keV flux of 1.67 × 10-12 erg s-1 cm-2. This flux is ~25 times higher than measured during a recent XMM-Newton observation (see below).

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