The GRAVITY young stellar object survey - XV. The star-disk interaction region of the T Tauri star DO Tau

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Table 3

Best-fit parameters and 1σ errors for the K-band and Brγ line emitting regions.

Parameters	Values
K-band emission
Fraction of star flux f_s	22 ± 5%
Fraction of halo flux f_h	12 ± 5%
Fraction of ring flux f_c	66 ± 5%
Inclination i	49° ± 5°
Position Angle PA	166° ± 5°
Half-flux radius a_K	0.62 ± 0.03 mas
Half-flux radius R_K	0.086 ± 0.004 au
Width-to-half-flux ratio w	${0.98}_{- 0.15}^{+ 0.02}$ $Mathematical equation: $0.98^{+0.02}_{-0.15}$$
Spectral index k_d	−1.4 ± 0.3
$χ_{r}^{2}$ $Mathematical equation: $\chi^2_r$$	0.8
Brγ emission
Fraction of halo flux f_h	10 ± 2%
Half-Width Half-Maximum^(*)	0.08 ± 0.05 mas 0.011 ± 0.007 au
$χ_{r}^{2}$ $Mathematical equation: $\chi^2_r$$	0.6

Notes. ^(*)For the central spectral channel.

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