**Table 5:** Binary properties of confirmed or suspected metal-deficient barium stars. The column labeled "Ba'' indicates whether detailed chemical analyses have confirmed the Ba nature of the star. The columns labeled $\chi ^2_{\mu _{\rm HIP} - \mu _{\rm Tyc}}$ and Prob( $\chi ^2 > \chi ^2_{\mu _{\rm HIP} - \mu _{\rm Tyc}})$ provide the $\chi ^2$ (and its associated probability) involved in the comparison of Hipparcos and Tycho-2 proper motions (see text for details). The column "Bin.'' has been set to "y'' if the first kind risk of rejecting the null hypothesis that the Tycho and Hipparcos proper motions are equal is smaller than 10%. The column labeled IAD indicates whether the signature of an orbital motion is present in the Hipparcos Intermediate Astrometric Data, according to the various tests described in the text. The column labeled $\sigma (Vr)$ provides the radial-velocity standard deviation, $\Delta t$ and N correspond to the time span and number of observations, respectively. The columns labeled P and "Ref'' list the orbital period (when available) and the reference for the radial velocity and/or orbital data. The column "Binary'' gives the final binarity diagnostics.
HIP	HD/DM	Ba	Ref.	$\varpi$ (mas)	$\mu_{\rm HIP} - \mu_{\rm Tyc}$			IAD	$\sigma (Vr)$	$\Delta t$	N	P	Ref.	Binary
					$\chi^2_{\rm obs}$	Prob( $\chi^2 > \chi^2_{\rm obs})$	Bin.		(km s^-1)	(d)		(d)
4347	5424			$0.22\pm1.42$	1.05	0.59	n	n	2.32	3306	13	1881	6	y
11595	15589			$2.03\pm1.21$	1.63	0.44	n	n	-	-	-	-		?
25161	$-27^\circ$ 2233			$0.89\pm1.35$	0.23	0.89	n	n	-	-	-	-		?
29740	43 389			$-1.25\pm1.00$	4.54	0.10	y	y	3.85	3350	24	1689	6	y
34795	55 496	y	5	$2.44\pm1.04$	0.02	0.99	n	y	0.73	5121	24	-	2	y?
58596	104 340	y	3	$-0.97\pm1.09$	3.39	0.18	n	n	1.64	2587	16	-	2	n
69834	123 396			$1.73\pm0.86$	1.98	0.27	n	n	-	-	-	-		?
76605	139 409	y	2	$5.51\pm1.14$	4.98	0.08	y	n	0.66	1478	2	-	2	y?
97874	187 762			$2.07\pm1.53$	9.00	0.01	y	y	-	-	-	-		y
107478	206 983	y	3	$3.75\pm1.86$	2.94	0.23	n	y	-	-	-	-		y?
Additional stars (from refs. (1), (5) and (10))
43042	+ $75^\circ 348$	y	1	$1.02\pm1.32$	0.12	0.94	n	y	4.64	1436	33	1042	11	y
55852	+ $4^\circ 2466$	y	4,5	$0.96\pm1.83$	0.43	0.81	n	n	3.38	6191	41	4592	2	y
	+ $3^\circ 2688$	y	5	-	-	-	-	-	0.45	986	7	-	2	n?
	CS 22942-019	y	10	-	-	-	-	-	3.42	3274	15	2800	10	y
	CS 22948-027	y	10	-	-	-	-	-	1.87	2560	13	505	10	y

References to the table: (1) Zacs et al. (2000); (2) this work (3) Junqueira & Pereira (2001); (4) Burris et al. (2000); (5) Luck & Bond (1991); (6) Udry et al. (1998); (10) Preston & Sneden (2001); (11) Zacs et al. (2005).

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