Fig. 4.
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Δω(f) = ω(f)−ω0 for models (I), (IIIa), and (IIIb). The discrepancy in pericentre shift per orbit between models (IIIa)–(IIIb) with extended mass and model (I) without it predominantly builds up in the shaded blue region. The vertical line within this region marks the true anomaly of model (I) in 2021.96, which is approximately the time of publication (GRAVITY Collaboration 2022).
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