In fact, this trough was found to be dependent on the noise properties of the data, since when the jitter parameter was considered in the periodogram analysis the evidence pointed towards a period of $\sim$40 days, close to twice the period, indicating it is an artifact of the interference pattern from the window function beating with the real signal in the data.

The evolved nature of the star ensures that it is an inactive and slowly rotating star and hence it is unlikely that stellar activity is the source of these signals. The minimum mass of the planet is found to be 1.47  and a non-zero eccentricity was found for the signal. We note that a significant linear trend was also found that possibly indicates more companions that await discovery in this system, particularly at longer orbital periods. The method also indicated that a shorter period signal may be present, with a period close to 60 days, yet the current data does not allow us to confirm this as a genuine second planet since the signal disappears when we introduce the linear activity correlation parameters in the analysis. Also, this signal could be an alias of the detected planetary signal.

