The evolution of velocity dispersion in the Sco-Cen OB association

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Table A.2

Overview of 36 stellar clusters toward Sco-Cen from R23a (SigMA selected clusters) and MR25 (TWA clusters), including RV data statistics, sorted by cluster age. An extended online version of this table is available on Vizier, which also contains further cluster properties, such as average positions and motions, as shown in the column overview in Table C.2.

Idx	SigMA	TR	Name	stab_lim	Age	Number of sources per cluster
					(Myr)	n_all	n_xyz,used (%)	n_UVW,all (%)	n_UVW,used (%)
1	17	UCL	e Lup	8.2	${20.9}_{- 0.8}^{+ 0.7}$ $Mathematical equation: $20.9^{+0.7}_{-0.8}$$	516	468 ( 90.7)	201 (39.0)	64 (12.4)
2	12	UCL	Libra-South	3.9	${20.0}_{- 2.2}^{+ 2.5}$ $Mathematical equation: $20.0^{+2.5}_{-2.2}$$	71	65 ( 91.5)	27 (38.0)	11 (15.5)
3	9	US	US-foreground	4.6	${19.1}_{- 1.3}^{+ 2.4}$ $Mathematical equation: $19.1^{+2.4}_{-1.3}$$	276	254 ( 92.0)	174 (63.0)	109 (39.5)
4	15	UCL	φ Lup	6.8	${16.9}_{- 0.6}^{+ 0.9}$ $Mathematical equation: $16.9^{+0.9}_{-0.6}$$	1114	1047 ( 94.0)	513 (46.1)	209 (18.8)
5	27	Pipe	Pipe-North	1.9	${15.9}_{- 2.1}^{+ 1.6}$ $Mathematical equation: $15.9^{+1.6}_{-2.1}$$	42	40 ( 95.2)	21 (50.0)	9 (21.4)
6	20	UCL	ν Cen	7.8	${15.7}_{- 0.9}^{+ 0.3}$ $Mathematical equation: $15.7^{+0.3}_{-0.9}$$	1737	1522 ( 87.6)	713 (41.0)	260 (15.0)
7	21	LCC	σ Cen	9.3	${15.5}_{- 0.5}^{+ 0.6}$ $Mathematical equation: $15.5^{+0.6}_{-0.5}$$	1778	1618 ( 91.0)	897 (50.4)	387 (21.8)
8	28	Pipe	θ Oph	8.8	${15.4}_{- 1.9}^{+ 0.8}$ $Mathematical equation: $15.4^{+0.8}_{-1.9}$$	98	90 ( 91.8)	40 (40.8)	9 ( 9.2)
9	14	UCL	ε Lup	6.4	${15.3}_{- 0.3}^{+ 0.6}$ $Mathematical equation: $15.3^{+0.6}_{-0.3}$$	769	722 ( 93.9)	387 (50.3)	131 (17.0)
10	10	UCL	V1062-Sco	9.9	${15.0}_{- 1.4}^{+ 0.9}$ $Mathematical equation: $15.0^{+0.9}_{-1.4}$$	1029	963 ( 93.6)	341 (33.1)	117 (11.4)
11	8	US	Scorpio-Body	5.7	${14.7}_{- 0.7}^{+ 0.8}$ $Mathematical equation: $14.7^{+0.8}_{-0.7}$$	373	344 ( 92.2)	148 (39.7)	45 (12.1)
12	31	CrA	Scorpio-Sting	1.6	${14.5}_{- 0.6}^{+ 0.6}$ $Mathematical equation: $14.5^{+0.6}_{-0.6}$$	132	129 ( 97.7)	42 (31.8)	13 ( 9.8)
13	19	UCL	ρ Lup	8.6	${14.4}_{- 0.9}^{+ 0.4}$ $Mathematical equation: $14.4^{+0.4}_{-0.9}$$	246	235 ( 95.5)	102 (41.5)	42 (17.1)
14	7	US	ρ Sco	7.3	${13.7}_{- 0.6}^{+ 1.3}$ $Mathematical equation: $13.7^{+1.3}_{-0.6}$$	240	227 ( 94.6)	136 (56.7)	84 (35.0)
15	18	UCL	UPK606	8.7	${13.4}_{- 0.7}^{+ 1.4}$ $Mathematical equation: $13.4^{+1.4}_{-0.7}$$	131	115 ( 87.8)	61 (46.6)	24 (18.3)
16	6	US	Antares	9.7	${12.7}_{- 1.7}^{+ 0.4}$ $Mathematical equation: $12.7^{+0.4}_{-1.7}$$	502	468 ( 93.2)	330 (65.7)	203 (40.4)
17	30	CrA	CrA-North	9.9	${11.6}_{- 0.8}^{+ 0.5}$ $Mathematical equation: $11.6^{+0.5}_{-0.8}$$	351	333 ( 94.9)	145 (41.3)	44 (12.5)
18	22	LCC	Acrux	9.9	${11.2}_{- 1.0}^{+ 1.0}$ $Mathematical equation: $11.2^{+1.0}_{-1.0}$$	394	385 ( 97.7)	228 (57.9)	103 (26.1)
19	23	LCC	Musca-foreground	9.9	${10.2}_{- 0.7}^{+ 1.0}$ $Mathematical equation: $10.2^{+1.0}_{-0.7}$$	95	88 ( 92.6)	46 (48.4)	19 (20.0)
20	5	US	σ Sco*	9.7	${10.0}_{- 0.5}^{+ 1.0}$ $Mathematical equation: $10.0^{+1.0}_{-0.5}$$	544	508 ( 93.4)	329 (60.5)	218 (40.1)
21	3	US	δ Sco*	9.9	${9.8}_{- 1.4}^{+ 1.2}$ $Mathematical equation: $9.8^{+1.2}_{-1.4}$$	691	674 ( 97.5)	518 (75.0)	362 (52.4)
22	35	NE	L134/L183	1.0	${9.6}_{- 2.2}^{+ 1.7}$ $Mathematical equation: $9.6^{+1.7}_{-2.2}$$	24	24 (100.0)	12 (50.0)	9 (37.5)
23	25	LCC	ε Cham	7.8	${9.4}_{- 0.9}^{+ 1.4}$ $Mathematical equation: $9.4^{+1.4}_{-0.9}$$	30	23 ( 76.7)	15 (50.0)	8 (26.7)
24	-	TWA	TWA-a	9.9	${9.0}_{- 1.0}^{+ 2.0}$ $Mathematical equation: $9.0^{+2.0}_{-1.0}$$	44	44 (100.0)	36 (81.8)	23 (52.3)
25	24	LCC	ε Cham	9.9	${8.8}_{- 0.4}^{+ 0.6}$ $Mathematical equation: $8.8^{+0.6}_{-0.4}$$	39	36 ( 92.3)	32 (82.1)	25 (64.1)
26	29	CrA	CrA-Main	9.9	${8.5}_{- 2.4}^{+ 2.0}$ $Mathematical equation: $8.5^{+2.0}_{-2.4}$$	96	85 ( 88.5)	75 (78.1)	45 (46.9)
27	4	US	β Sco*	9.8	${7.6}_{- 0.7}^{+ 0.8}$ $Mathematical equation: $7.6^{+0.8}_{-0.7}$$	285	263 ( 92.3)	210 (73.7)	158 (55.4)
28	-	TWA	TWA-b	9.9	${6.0}_{- 1.0}^{+ 2.0}$ $Mathematical equation: $6.0^{+2.0}_{-1.0}$$	22	22 (100.0)	22 (100.0)	19 (86.4)
29	13	UCL	Lupus 1-4*	7.7	${6.0}_{- 0.9}^{+ 0.6}$ $Mathematical equation: $6.0^{+0.6}_{-0.9}$$	226	199 ( 88.1)	79 (35.0)	28 (12.4)
30	2	US	ν Sco*	10.0	${5.8}_{- 0.5}^{+ 1.8}$ $Mathematical equation: $5.8^{+1.8}_{-0.5}$$	150	147 ( 98.0)	119 (79.3)	98 (65.3)
31	1	US	ρ Oph/L1688*	9.9	${3.8}_{- 0.4}^{+ 0.4}$ $Mathematical equation: $3.8^{+0.4}_{-0.4}$$	535	507 ( 94.8)	354 (66.2)	243 (45.4)
32	26	Pipe	B59*	4.7	${3.4}_{- 0.9}^{+ 3.1}$ $Mathematical equation: $3.4^{+3.1}_{-0.9}$$	32	28 ( 87.5)	10 (31.2)	4 (12.5)
33	11	UCL	μ Sco	9.9	${17.2}_{- 2.4}^{+ 0.9}$ $Mathematical equation: $17.2^{+0.9}_{-2.4}$$	54	52 ( 96.3)	14 (25.9)	2 ( 3.7)
34	32	Cham	Centaurus-Far	0.1	${8.5}_{- 1.3}^{+ 1.1}$ $Mathematical equation: $8.5^{+1.1}_{-1.3}$$	99	99 (100.0)	25 (25.3)	7 ( 7.1)
35	33	Cham	Chamaeleon-1	9.9	${3.8}_{- 0.9}^{+ 1.9}$ $Mathematical equation: $3.8^{+1.9}_{-0.9}$$	192	184 ( 95.8)	106 (55.2)	89 (46.4)
36	34	Cham	Chamaeleon-2	7.7	${2.8}_{- 1.1}^{+ 0.7}$ $Mathematical equation: $2.8^{+0.7}_{-1.1}$$	54	49 ( 90.7)	32 (59.3)	19 (35.2)

Notes. Col. 1: Idx is the cluster_index, ordered by decreasing age for the top 32 rows. The four clusters at the bottom are not included in our analysis but are listed here for completeness. Col. 2: sigma_label from R23a. Col. 3: Position of clusters within traditional regions (TR); see Appendix A.1. Col. 4: cluster_name from R23a or MR25. Col. 5: Stability threshold for each cluster used for quality criteria. Col. 6: Cluster ages and their uncertainties from R23b and MR25 (PARSEC, BPRP). Cols. 7-10 list the number of sources (n.o.s.) per cluster, from left to right: total n.o.s per cluster; n.o.s. used to derive 5D cluster properties; n.o.s. that have been observed by at least one RV survey; n.o.s. used to derive 6D cluster properties, with applied RV quality criteria. The percentage (%) of remaining sources relative to n_all is given in brackets. The seven clusters marked with an asterisk (*) in Col. 4 are identified as ‘peculiar’ concerning their relative motions within Sco-Cen (see Sect. 5.2).

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