Investigation of two candidate tidal capture binary star clusters in the Milky Way using Gaia DR3

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Table 2

Property parameters of the four clusters.

Name	α deg	δ deg	$μ_{α}^{}$ $\[\mu_{\alpha}^{}\]$ mas/yr	μ_δ mas/yr	ϖ mas	RV km s⁻¹	dist pc	N
ASCC 71	185.11±0.66	−67.52±0.17	−9.37±0.18	−1.36±0.18	0.749±0.037	−11.55±0.14	1338.35±23.72	124
ESO 064-05	186.15±0.55	−68.48±0.12	−9.03±0.12	−1.46±0.14	0.752±0.036	−13.61±0.20	1334.58±18.35	33
NGC 2129	90.27±0.11	23.35±0.12	0.23±0.07	−2.20±0.09	0.463±0.034	17.26±2.53	2090.53±64.71	78
UBC 437	89.47±0.15	22.05±0.14	0.11±0.06	−1.89±0.08	0.466±0.035	28.20±2.23	2083.12±70.39	43

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