Rotational splittings and their asymmetries as a function of mode frequency. Left panel: Rotational splittings of the evolved model using a core rotation rate Ω_core/(2π) = 750 nHz and an envelope rotation rate Ω_env/(2π) = 50 nHz. Rotational splittings that have the same n_pg are connected by a grey line. Only a subset of the rotational splittings centred around ν_max ≈ 100 μHz is selected for the rotational inversions (see text for details). The dotted blue line connects the symmetric splittings for clarity. The rotational splittings, δω_nℓm, were obtained by computing the frequency differences according to Eqs. (13a) and (13b), using the frequencies obtained from solving the full QEP posed by Eq. (9), as described in Appendix C, while the symmetric rotational splittings, δω_{nℓm,  symm}, where obtained from Eq. (1). Right panel: Asymmetries of the rotational splittings (Δω_asym) of the evolved model over a range of core rotation rates Ω_core, for Ω_env/(2π) = 50 nHz. The lines are colour-coded by the core rotation rate.