Fig. 12.
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Period–amplitude diagram of our sample stars (black dots) and the LMC RSGs from Ren et al. (2021b, red dots). The amplitude and period are taken from the Gaia DR3 LPV catalog (Lebzelter et al. 2023). The solid blue lines are manually drawn to separate the AGB star branch (short period) and the RSG candidate branch (long period).
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