Fig. 1
INTEGRAL/ISGRI thermal (20–50 keV: circles) and powerlaw (20–200 keV: squares) fluxes for Sco X-1 plotted against MJD − 50 000 (as derived from OSA software). Data span of 7 years of observations (from 2003 to 2010). The arrow is a 3σ upper limit of ~5 × 10-12 in the 50 to 200 keV flux.
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