Fig. 11

Top: GLS of the RV fitting challenge system 2 (raw time series). The red horizontal lines correspond to the true planetary signals injected into the data. Middle: figure used for the challenge, blue: ℓ1-periodogram of the RVs, yellow: ℓ1-periodogram of FWHM, purple: ℓ1-periodogram of ). Only the 3.77-day signal was detected by team 8. Bottom: new version of the ℓ1-periodogram (Hara et al. 2017).
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