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Fig. 7

image

Combined Swift/XRT and RXTE/PCA+HEXTE spectrum at the peak outburst phase (on 2011 March 31) in EF(E) units fitted using phabs*CompTB model (with α = 0.79 ± 0.05, kTe = 34 ± 2 keV, log (A) = −0.43 ± 0.04, kTs = 370 ± 10 eV ( for 889 d.o.f.), see also Table 5.

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