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

Open Access

Table 1

Fundamental parameters of the four clusters.

Name	[Fe/H]	E(BP-RP) mag	Age Myr	m-M mag
ASCC 71	${0.006}_{- 0.002}^{+ 0.002}$ $\[0.006_{-0.002}^{+0.002}\]$	${0.42}_{- 0.08}^{+ 0.11}$ $\[0.42_{-0.08}^{+0.11}\]$	$136_{- 40}^{+ 95}$ $\[136_{-40}^{+95}\]$	${9.87}_{- 0.36}^{+ 0.28}$ $\[9.87_{-0.36}^{+0.28}\]$
ESO 064-05	${0.010}_{- 0.004}^{+ 0.007}$ $\[0.010_{-0.004}^{+0.007}\]$	${0.35}_{- 0.18}^{+ 0.21}$ $\[0.35_{-0.18}^{+0.21}\]$	$56_{- 5}^{+ 15}$ $\[56_{-5}^{+15}\]$	${10.15}_{- 0.10}^{+ 0.09}$ $\[10.15_{-0.10}^{+0.09}\]$
NGC 2129	${0.008}_{- 0.006}^{+ 0.022}$ $\[0.008_{-0.006}^{+0.022}\]$	${0.94}_{- 0.39}^{+ 0.24}$ $\[0.94_{-0.39}^{+0.24}\]$	$46_{- 20}^{+ 115}$ $\[46_{-20}^{+115}\]$	${10.26}_{- 0.75}^{+ 0.92}$ $\[10.26_{-0.75}^{+0.92}\]$
UBC 437	${0.006}_{- 0.004}^{+ 0.004}$ $\[0.006_{-0.004}^{+0.004}\]$	${0.67}_{- 0.22}^{+ 0.18}$ $\[0.67_{-0.22}^{+0.18}\]$	$426_{- 135}^{+ 185}$ $\[426_{-135}^{+185}\]$	${10.61}_{- 0.26}^{+ 0.23}$ $\[10.61_{-0.26}^{+0.23}\]$

Notes. Age, (m-M), E(BP-RP), and [Fe/H] determined by isochrone fitting.

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