Radiative hydrodynamics simulations of red supergiant stars - I. interpretation of interferometric observations

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Table 2:

Time-averaged limb-darkening coefficients for the RHD simulation.
$\lambda$	a₀	$\sigma$	a₁	$\sigma$	a₂	$\sigma$	a₃	$\sigma$
( $\mu$ m)		( $\%$ )		( $\%$ )		( $\%$ )		( $\%$ )
1.64^a	1.00	5	-0.93	50	2.03	50	-1.98	55
2.22^b	1.00	5	-0.85	50	2.12	45	-2.13	45

^a central wavelength of the corresponding IONIC filter;
^b central wavelength of the corresponding K222-FLUOR filter.
(see Eq. (2), where $\sigma$ is the standard deviation over time (57 profiles covering 3.5 years)).

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