A study of newly discovered close binary open cluster candidates in the Milky Way from Gaia DR3

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Table 2

Fundamental parameters and astrometric information for the 13 newly discovered candidate CBOCs.

Pair	Cluster	m-M	E(G - G_RP)	Age	[Fe/H]	μ_αcosδ	μ_delta	N	Note
		[mag]	[mag]	[Myr]		[mas/yr]	[mas/yr]	Prob>0.7
1	ADS16795	${7.33}_{- 0.32}^{+ 0.42}$ $7.33^{+0.42}_{-0.32}$	${0.27}_{- 0.11}^{+ 0.02}$ $0.27^{+0.02}_{-0.11}$	$98_{- 4}^{+ 14}$ $98^{+14}_{-4}$	${0.0085}_{- 0.0037}^{+ 0.0185}$ $0.0085^{+0.0185}_{-0.0037}$	18.66±1.30	2.85±1.26	41
	HSC976	${6.56}_{- 0.54}^{+ 0.60}$ $6.56^{+0.60}_{-0.54}$	${0.14}_{- 0.11}^{+ 0.10}$ $0.14^{+0.10}_{-0.11}$	$14_{- 1}^{+ 1}$ $14^{+1}_{-1}$	${0.0152}_{- 0.0067}^{+ 0.0118}$ $0.0152^{+0.0118}_{-0.0067}$	17.16±5.80	5.32±5.30	88
2	ASCC100	${7.71}_{- 0.37}^{+ 0.41}$ $7.71^{+0.41}_{-0.37}$	${0.12}_{- 0.08}^{+ 0.09}$ $0.12^{+0.09}_{-0.08}$	$31_{- 3}^{+ 18}$ $31^{+18}_{-3}$	${0.0085}_{- 0.0037}^{+ 0.0067}$ $0.0085^{+0.0067}_{-0.0037}$	1.73±0.46	−3.45±0.29	87	PBOC
	HSC534	${7.71}_{- 0.33}^{+ 0.38}$ $7.71^{+0.38}_{-0.33}$	${0.11}_{- 0.06}^{+ 0.07}$ $0.11^{+0.07}_{-0.06}$	$31_{- 11}^{+ 18}$ $31^{+18}_{-11}$	${0.0085}_{- 0.0037}^{+ 0.0067}$ $0.0085^{+0.0067}_{-0.0037}$	1.68±0.18	−3.25±0.32	18	PBOC
3	BDSB93	${9.68}_{- 0.80}^{+ 0.38}$ $9.68^{+0.38}_{-0.80}$	${0.34}_{- 0.13}^{+ 0.15}$ $0.34^{+0.15}_{-0.13}$	$37_{- 24}^{+ 56}$ $37^{+56}_{-24}$	${0.0027}_{- 0.0012}^{+ 0.0021}$ $0.0027^{+0.0021}_{-0.0012}$	−2.33±0.14	1.25±0.16	55	PBOC
	HSC1740	${11.69}_{- 0.47}^{+ 0.30}$ $11.69^{+0.30}_{-0.47}$	${0.61}_{- 0.21}^{+ 0.13}$ $0.61^{+0.13}_{-0.21}$	$13_{- 0}^{+ 7}$ $13^{+7}_{-0}$	${0.0152}_{- 0.0067}^{+ 0.0118}$ $0.0152^{+0.0118}_{-0.0067}$	−2.42±0.11	1.14±0.14	27	PBOC
4	CWNU1024	${8.71}_{- 0.28}^{+ 0.34}$ $8.71^{+0.34}_{-0.28}$	${0.08}_{- 0.06}^{+ 0.09}$ $0.08^{+0.09}_{-0.06}$	$21_{- 5}^{+ 32}$ $21^{+32}_{-5}$	${0.0481}_{- 0.0211}^{+ 0}$ $0.0481^{+0}_{-0.0211}$	−5.55±0.62	6.02±0.26	336	PBOC
	OCSN82	${8.60}_{- 0.36}^{+ 0.25}$ $8.60^{+0.25}_{-0.36}$	${0.09}_{- 0.06}^{+ 0.10}$ $0.09^{+0.10}_{-0.06}$	$26_{- 10}^{+ 48}$ $26^{+48}_{-10}$	${0.0270}_{- 0.0118}^{+ 0.0211}$ $0.0270^{+0.0211}_{-0.0118}$	−5.44±0.27	6.46±0.24	157	PBOC
5	CWNU1173	${8.56}_{- 0.44}^{+ 0.43}$ $8.56^{+0.43}_{-0.44}$	${0.17}_{- 0.11}^{+ 0.12}$ $0.17^{+0.12}_{-0.11}$	$98_{- 61}^{+ 116}$ $98^{+116}_{-61}$	${0.0481}_{- 0.0211}^{+ 0}$ $0.0481^{+0}_{-0.0211}$	−13.03±0.43	−0.62±1.19	165	PBOC
	CWNU1256	${8.54}_{- 0.33}^{+ 0.34}$ $8.54^{+0.34}_{-0.33}$	${0.15}_{- 0.08}^{+ 0.09}$ $0.15^{+0.09}_{-0.08}$	$98_{- 4}^{+ 4}$ $98^{+4}_{-4}$	${0.0481}_{- 0.0211}^{+ 0}$ $0.0481^{+0}_{-0.0211}$	−13.38±0.26	−1.33±0.56	37	PBOC
6	CWNU2666	${9.91}_{- 0.36}^{+ 0.47}$ $9.91^{+0.47}_{-0.36}$	${0.33}_{- 0.13}^{+ 0.13}$ $0.33^{+0.13}_{-0.13}$	$1480_{- 200}^{+ 220}$ $1480^{+220}_{-200}$	${0.0085}_{- 0.0037}^{+ 0.0067}$ $0.0085^{+0.0067}_{-0.0037}$	0.61±0.07	−0.80±0.10	51
	HSC224	${9.81}_{- 0.54}^{+ 0.44}$ $9.81^{+0.44}_{-0.54}$	${0.20}_{- 0.10}^{+ 0.18}$ $0.20^{+0.18}_{-0.10}$	$1410_{- 120}^{+ 70}$ $1410^{+70}_{-120}$	${0.0085}_{- 0.0037}^{+ 0.0067}$ $0.0085^{+0.0067}_{-0.0037}$	0.66±0.15	−0.76±0.13	61
7	HSC189	${9.25}_{- 0.24}^{+ 0.41}$ $9.25^{+0.41}_{-0.24}$	${0.32}_{- 0.10}^{+ 0.08}$ $0.32^{+0.08}_{-0.10}$	$98_{- 44}^{+ 88}$ $98^{+88}_{-44}$	${0.0481}_{- 0.0211}^{+ 0}$ $0.0481^{+0}_{-0.0211}$	−3.62±0.23	−9.60±0.25	40
	UPK24	${9.25}_{- 0.24}^{+ 0.44}$ $9.25^{+0.44}_{-0.24}$	${0.31}_{- 0.11}^{+ 0.12}$ $0.31^{+0.12}_{-0.11}$	$676_{- 59}^{+ 65}$ $676^{+65}_{-59}$	${0.0481}_{- 0.0211}^{+ 0}$ $0.0481^{+0}_{-0.0211}$	−3.80±0.20	−9.85±0.25	72
8	HSC477	${7.66}_{- 0.53}^{+ 0.39}$ $7.66^{+0.39}_{-0.53}$	${0.13}_{- 0.04}^{+ 0.13}$ $0.13^{+0.13}_{-0.04}$	$14_{- 1}^{+ 17}$ $14^{+17}_{-1}$	${0.0481}_{- 0.0211}^{+ 0}$ $0.0481^{+0}_{-0.0211}$	−15.40±1.86	−6.18±1.95	24	PBOC
	HSC759	${5.69}_{- 0.48}^{+ 0.69}$ $5.69^{+0.69}_{-0.48}$	${0.11}_{- 0.09}^{+ 0.14}$ $0.11^{+0.14}_{-0.09}$	$102_{- 80}^{+ 93}$ $102^{+93}_{-80}$	${0.0481}_{- 0.0329}^{+ 0}$ $0.0481^{+0}_{-0.0329}$	−16.19±2.78	−3.64±2.92	152	PBOC
9	HSC1630	${6.00}_{- 0.27}^{+ 0.37}$ $6.00^{+0.37}_{-0.27}$	${0.06}_{- 0.06}^{+ 0.07}$ $0.06^{+0.07}_{-0.06}$	$62_{- 31}^{+ 195}$ $62^{+195}_{-31}$	${0.0270}_{- 0.0185}^{+ 0.0211}$ $0.0270^{+0.0211}_{-0.0185}$	−16.43±2.12	−11.61±4.72	94	PBOC
	HSC1644	${7.75}_{- 0.29}^{+ 0.41}$ $7.75^{+0.41}_{-0.29}$	${0.09}_{- 0.06}^{+ 0.07}$ $0.09^{+0.07}_{-0.06}$	$14_{- 1}^{+ 1}$ $14^{+1}_{-1}$	${0.0481}_{- 0.0211}^{+ 0}$ $0.0481^{+0}_{-0.0211}$	−15.69±0.99	−8.22±0.76	14	PBOC
10	HSC1897	${9.53}_{- 0.37}^{+ 0.38}$ $9.53^{+0.38}_{-0.37}$	${0.09}_{- 0.07}^{+ 0.07}$ $0.09^{+0.07}_{-0.07}$	$45_{- 20}^{+ 26}$ $45^{+26}_{-20}$	${0.0481}_{- 0.0329}^{+ 0}$ $0.0481^{+0}_{-0.0329}$	−5.99±0.18	4.18±0.22	59	PBOC
	HSC1911	${9.53}_{- 0.42}^{+ 0.41}$ $9.53^{+0.41}_{-0.42}$	${0.05}_{- 0.04}^{+ 0.07}$ $0.05^{+0.07}_{-0.04}$	$45_{- 24}^{+ 117}$ $45^{+117}_{-24}$	${0.0481}_{- 0.0211}^{+ 0}$ $0.0481^{+0}_{-0.0211}$	−6.39±0.35	4.35±0.32	55	PBOC
11	HSC2204	${11.71}_{- 0.42}^{+ 0.78}$ $11.71^{+0.78}_{-0.42}$	${0.86}_{- 0.22}^{+ 0.19}$ $0.86^{+0.19}_{-0.22}$	$741_{- 65}^{+ 279}$ $741^{+279}_{-65}$	${0.0027}_{- 0.0012}^{+ 0.0021}$ $0.0027^{+0.0021}_{-0.0012}$	−5.54±0.11	5.66±0.14	24
	OC0508	${11.81}_{- 1.02}^{+ 1.18}$ $11.81^{+1.18}_{-1.02}$	${0.87}_{- 0.16}^{+ 0.20}$ $0.87^{+0.20}_{-0.16}$	$813_{- 72}^{+ 78}$ $813^{+78}_{-72}$	${0.0027}_{- 0.0018}^{+ 0.0058}$ $0.0027^{+0.0058}_{-0.0018}$	−5.57±0.14	5.58±0.12	81
12	HSC2468	${6.00}_{- 0.54}^{+ 0.37}$ $6.00^{+0.37}_{-0.54}$	${0.08}_{- 0.05}^{+ 0.13}$ $0.08^{+0.13}_{-0.05}$	$13_{- 0}^{+ 30}$ $13^{+30}_{-0}$	${0.0481}_{- 0.0329}^{+ 0}$ $0.0481^{+0}_{-0.0329}$	−35.27±1.51	−11.96±2.35	210	PBOC
	HSC2505	${5.31}_{- 0.38}^{+ 0.41}$ $5.31^{+0.41}_{-0.38}$	${0.13}_{- 0.09}^{+ 0.09}$ $0.13^{+0.09}_{-0.09}$	$20_{- 8}^{+ 31}$ $20^{+31}_{-8}$	${0.0481}_{- 0.0211}^{+ 0}$ $0.0481^{+0}_{-0.0211}$	−37.79±0.81	−10.81±1.26	113	PBOC
13	HSC2571	${8.48}_{- 0.36}^{+ 0.46}$ $8.48^{+0.46}_{-0.36}$	${0.12}_{- 0.08}^{+ 0.07}$ $0.12^{+0.07}_{-0.08}$	$162_{- 64}^{+ 42}$ $162^{+42}_{-64}$	${0.0481}_{- 0.0329}^{+ 0}$ $0.0481^{+0}_{-0.0329}$	−8.97±0.45	−5.62±0.27	22	PBOC
	Platais12	${8.58}_{- 0.51}^{+ 0.50}$ $8.58^{+0.50}_{-0.51}$	${0.12}_{- 0.10}^{+ 0.09}$ $0.12^{+0.09}_{-0.10}$	$162_{- 60}^{+ 95}$ $162^{+95}_{-60}$	${0.0481}_{- 0.0329}^{+ 0}$ $0.0481^{+0}_{-0.0329}$	−8.31±0.77	−5.41±0.57	225	PBOC

Notes. µ_αcosδ and µ_δ are taken from HR23, and m-M, E(G -G_RP), age, and [Fe/H] were determined here.

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