Fig. 1
Normalized luminosity (L/L0) as a function of time (see Eq. (3)) for various spin-down models (n = 1,2,3) as compared with the observed XRT data. We take t0 = 2 × 104 s, which is the observed time of the end of the plateau, and ts = 4000 s, which is the observed time at which the plateau starts and is an upper limit on the actual value.
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