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Probing Period Variability Mechanisms in SW Cygni through Eclipse Timing Variations
Zhi-Hua Wang and Si-Yu Xiao 2026 The Astrophysical Journal 1011 .
Caption: Figure 5.
Proper motion backtracking over a 25 yr baseline (Hipparcos versus Gaia DR3).
© 2026. The Author(s). Published by the American Astronomical Society.
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