The GRAVITY young stellar object survey - XIII. Tracing the time-variable asymmetric disk structure in the inner AU of the Herbig star HD 98922

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Table 3

Nonvariable parameters of the azimuthal modulation global fit continuum model.

		PIONIER		GRAVITY
Parameter	Unit	value	3σ_MCMC	value	3σ_MCMC
F_s	%	23.09	0.39	22.69	0.42
F_h	%	3.92	0.78	10.36	0.57
F_c	%	72.99	1.17	66.95	0.99
k_c		3.47	0.18	−0.39	0.33
a_r	mas	0.93	0.06	2.02	0.06
a_k	mas	1.60	0.03	1.73	0.06
i	deg	0.67	2.01	34.15	1.08
PA	deg	106.9	1.80	122.9	1.50
fLor		1.00	0.03	1.00	0.03
		11.52		5.26

Notes. F_c is not a free parameter, but is obtained following F_c = 1 −F_h − F_s. The σ_MCMC error estimates derived through the MCMC fitting procedure are given by the 16th and 84th percentiles of the samples in the MCMC marginalized distributions.

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