First MATISSE L-band observations of HD 179218 - Is the inner 10 au region rich in carbon dust particles?

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Table 2

Free parameters with their priors for the one component model.

One-component models

			Gaussian		Ring * Gaussian
Reduced χ²			1.33		2.65
Description	Parameter	Prior	Median	Best-fit	Median	Best-fit
Radius	r [au]	From 0 to 35	–	–		3.17
FWHM	ω_G [au]	From 0 to 35		10.65	–	–
FWHM	ω_r*G [au]	From 0 to 35	–	–		13.34
Temperature	T_G [K]	From 100 to 1000		431.65	–	–
Temperature	T_r*G [K]	From 100 to 1000	–	–		448

Notes. The best-fit values, with the associated reduced χ², and the median values, with the associated 1σ error bars, are indicated.

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