Spatially resolving the inhomogeneous structure of the dynamical atmosphere of Betelgeuse with VLTI/AMBER

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Table 1:

Summary of the AMBER observations of Betelgeuse and the calibrator Sirius.
#	Name	Night	$t_{\rm obs}$	Tel.	$B_{\rm p}$	PA	Seeing ( $^{\prime\prime}$ )	Airmass	DIT	Number
			(UTC)		(m)	( $^\circ$ )	(visible)		(ms)	of frames
2008, HR_K ( $\lambda /\Delta \lambda$ = 12 000), 2.28-2.31 $\mu$ m
1	Betelgeuse	Jan. 08	03:52:58	E0-G0-H0	16.00/31.97/47.96	73	0.4	1.19	120	2500
Cal	Sirius	Jan. 08	04:18:54	E0-G0-H0	16.00/31.99/47.99	72	0.3	1.01	120	2500
2	Betelgeuse	Jan. 08	04:48:24	E0-G0-H0	15.70/31.37/47.06	71	0.3	1.28	120	2500
2006, MR_K ( $\lambda /\Delta \lambda$ = 1500), 2.1-2.2 $\mu$ m
3	Betelgeuse	Feb. 10	02:45:08	E0-G0	15.45	70	1.1	1.33	48	6000
Cal	Sirius	Feb. 10	04:50:22	E0-G0	12.73	81	1.1	1.32	48	2500

Note: $B_{\rm p}$ (projected baseline length), PA (position angle of the projected baseline vector).

Source LaTeX | All tables | In the text

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