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Fig. 9

image

Comparison of the representative outbursts of X Ser and GK Per in their post-nova stages. They are aligned according to their decaying branches. The outbursts of GK Per are shifted in time and brightness to match those of X Ser, as marked in the legend. A linear fit to the merged decaying branch of both outbursts of GK Per is included. See Sect. 3.2 for more.

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