A multi-wavelength interferometric study of the massive young stellar object IRAS 13481-6124

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Table A.1

Fit parameters for geometric models to K-band visibilities.

Model	θ	r _in	T _in	q	i ^a	φ ^b
	[mas]	[mas]	[K]		[°]	[°]

UD	8.03				41	111	4.90	2.59^d	4.49
RING	5.38				40	115	6.61	2.59^d	5.89
GAUSS	5.43				45	114	2.54	2.59^d	2.55
DISK 1500 K		1.27	1500^c	0.43	46	114	1.27	2.60^d	1.51
DISK 1800 K		1.14	1800^c	0.47	46	114	1.26	2.60^d	1.49
DISK 2000 K		1.12	2000^c	0.50	46	114	1.25	2.60^d	1.48

Notes. As described in Appendix A, all models also include an extended component (Gaussian FWHM 108 mas) in order to reproduce the bispectrum speckle observations.

^(a)

This column gives the disk inclination, measured from the polar axis (i.e. 0° is pole-on).

^(b)

This column gives the model orientation, measured east of north.

^(c)

In the fitting procedure, this parameter was kept fixed.

^(d)

Given that these geometric models are point-symmetric, they predict a zero closure phase signal, resulting in the given value.

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