Fig. 4: Échelle diagrams for three stars in our sample.
From: Evidence of structural discontinuities in the inner core of red-giant stars
Observed mixed mode periods (green dots) as a function of the stretched periods (τ) modulo ΔΠ1 in an échelle diagram for the stars KIC3544063 (a), KIC9332840 (b) and KIC1995859 (c). The uncertainties were computed following the fitting technique described in method subsection Core glitches identification and characterization. The blue line on a and b represents the best fitted model to the observed mixed mode pattern, the orange lines mark intervals of the inferred signature period (τsig) given in Table 1 and the dashed-black lines show the frequency positions of the radial (ℓ = 0) modes. The star KIC1995859 (c) shows no evidence of a glitch. Source data are provided as a Source Data file.
