Fig. 8.
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Projected rotational velocity vs. effective temperature for blue straggler stars in the M67 open cluster. The data were taken from Bertelli Motta et al. (2018), Brady et al. (2023), and Nine et al. (2024). Nine et al. (2024) separate the stars between blue stragglers (BS) and blue lurkers (BL), which are a lower-mass subset of blue straggler stars. Downward (upward) arrows indicate upper (lower) limits.
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