Comment on "Stellar activity masquerading as planets in the habitable zone of the M dwarf Gliese 581" [EPA]

http://arxiv.org/abs/1503.01976


Robertson et al.(Reports, July 25 2014, p440-444)(1) claimed that activity-induced variability is responsible for the Doppler signal of the proposed planet candidate GJ 581d. We point out that their analysis using periodograms of residual data is incorrect, further promoting inadequate tools. Since the claim challenges the viability of the method to detect exo-Earths, we urge for more appropriate analyses (see appendix).

Read this paper on arXiv…

G. Anglada-Escude and M. Tuomi
Mon, 9 Mar 15
16/51

Comments: 15 pages, 4 figures. Includes appendix with full re-analysis of the data