Period diagram in the m = −2 gravity mode spectrum for star CoRoT 101486436 (star No 1, LRC1). The periods shown are calculated in the co-rotating frame for m = −2 with f_rot = 2.1 c d⁻¹; eight periods (P₆₂, P₅₉, P₅₇, P₅₅, P₅₂, P₅₀, P₄₉, and P₄₇) are nearly allconsecutive with a spacing period of 4400 ± 200 s (magenta ticks). The red ticks are periods also computed in the co-rotating frame of the star. These periods correspond to low amplitude frequencies, which are “doublons”, harmonics, or perhaps combinations.