XTE 1118+480 Figure 1.

Figure 1. Power spectrum of the 26-night CBA light curve of XTE J1118+480 in unfiltered ("pink") light. A strong signal at 5.853(5) c/d appears; there is no significant evidence of period or amplitude change during the month (April 2000). There are signs of possible weak signals at 1.20 and 3.01 c/d, but further analysis shows that these arise from uncorrected differential extinction (very hard to eliminate at such low signal strengths - 0.01 mag).

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