A typographical coding error altered the statistics of libration of the three-body angle in Kepler-60. Section 3.5 of the published article claimed that 20% of 50 samples from the posterior of Kepler-60 (assuming the low-eccentricity prior) had their three-body angle circulating rather than librating. This angle, f = lb - 2lc + ld, (1) depends on all three planets’ mean longitudes λ. We discovered an error, in which the orbital elements were incorrectly passed from the transit timing code to the long-term integrator. When this error is corrected, all 50 samples show libration near f = 45° during our 1000 yr integrations. Thus, we contradict the line in the abstract, “However, nonlibrating solutions also match the transit-timing data”. (Figure Presented).
All Science Journal Classification (ASJC) codes
- Astronomy and Astrophysics
- Space and Planetary Science