Extended Data Figure 1: Window function.
From: A terrestrial planet candidate in a temperate orbit around Proxima Centauri
a–c, Window function of the UVES (a), HARPS pre-2016 (b) and HARPS PRD (c) data sets. The same window function applies to the time series of Doppler and activity data. Peaks in the window function are periods at which aliases of infinite period signals would be expected. The green vertical lines mark the period of the planet candidate at 11.2 d.
