Figure 5.jpg (IMAGE)

SETI Institute

Figure 5.jpg

Caption

The photometric data shown in Figure 4 phase-folded on a linear period of P = 19:65802 days. The left panels shows the primary eclipse and the right panels show the secondary eclipse. The di erent data sets are vertically o set in the lower panels for clarity. The phase change of the secondary eclipse relative to the primary|indicative of the apsidal motion of the binary|is clearly seen in the right panels.

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The Astronomical Journal

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