The Hubble Missing Globular Cluster Survey - II. Survey membership tools and kinematic analysis of NGC 6749

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Volume 707 (March 2026)

A&A, 707 (2026) A258

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Table 1

Comparison between the posterior model distributions and the mock model.

Parameters	Posterior	Mock
$μ_{α} c o s δ^{G C} [m a s {y r}^{- 1}]$ $Mathematical equation: $\mu_{\alpha}cos\delta^{GC}\,\,[\mathrm{mas}\,\,\mathrm{yr}^{-1}]$$	$- {3.03}_{- 0.03}^{+ 0.02}$ $Mathematical equation: $-3.03_{-0.03}^{+0.02}$$	−3.00
$μ_{α} c o s δ^{F i e l d} [m a s {y r}^{- 1}]$ $Mathematical equation: $\mu_{\alpha}cos\delta^{Field}\,\,[\mathrm{mas}\,\,\mathrm{yr}^{-1}]$$	$- {1.68}_{- 0.15}^{+ 0.15}$ $Mathematical equation: $-1.68_{-0.15}^{+0.15}$$	−1.75
$μ_{δ}^{G C} [m a s {y r}^{- 1}]$ $Mathematical equation: $\mu_{\delta}^{GC}\,\,[\mathrm{mas}\,\,\mathrm{yr}^{-1}]$$	$- {5.45}_{- 0.02}^{+ 0.03}$ $Mathematical equation: $-5.45_{-0.02}^{+0.03}$$	−5.50
$μ_{δ}^{F i e l d} [m a s {y r}^{- 1}]$ $Mathematical equation: $\mu_{\delta}^{Field}\,\,[\mathrm{mas}\,\,\mathrm{yr}^{-1}]$$	$- {4.51}_{- 0.14}^{+ 0.15}$ $Mathematical equation: $-4.51_{-0.14}^{+0.15}$$	−4.25
$σ_{α}^{G C} [m a s {y r}^{- 1}]$ $Mathematical equation: $\sigma_{\alpha}^{GC}\,\,[\mathrm{mas}\,\,\mathrm{yr}^{-1}]$$	${0.19}_{- 0.07}^{+ 0.05}$ $Mathematical equation: $0.19_{-0.07}^{+0.05}$$	0.21
$σ_{α}^{F i e l d} [m a s {y r}^{- 1}]$ $Mathematical equation: $\sigma_{\alpha}^{Field}\,\,[\mathrm{mas}\,\,\mathrm{yr}^{-1}]$$	${2.50}_{- 0.11}^{+ 0.11}$ $Mathematical equation: $2.50_{-0.11}^{+0.11}$$	2.50
$σ_{δ}^{G C} [m a s {y r}^{- 1}]$ $Mathematical equation: $\sigma_{\delta}^{GC}\,\,[\mathrm{mas}\,\,\mathrm{yr}^{-1}]$$	${0.20}_{- 0.07}^{+ 0.06}$ $Mathematical equation: $0.20_{-0.07}^{+0.06}$$	0.21
$σ_{δ}^{F i e l d} [m a s {y r}^{- 1}]$ $Mathematical equation: $\sigma_{\delta}^{Field}\,\,[\mathrm{mas}\,\,\mathrm{yr}^{-1}]$$	${2.58}_{- 0.12}^{+ 0.12}$ $Mathematical equation: $2.58_{-0.12}^{+0.12}$$	2.50
$ρ_{α δ}^{G C} []$ $Mathematical equation: $\rho_{\alpha\delta}^{GC}\,\,[\,]$$	${0.03}_{- 0.05}^{+ 0.05}$ $Mathematical equation: $0.03_{-0.05}^{+0.05}$$	0.0
$ρ_{α δ}^{F i e l d} []$ $Mathematical equation: $\rho_{\alpha\delta}^{Field}\,\,[\,]$$	${0.25}_{- 0.05}^{+ 0.05}$ $Mathematical equation: $0.25_{-0.05}^{+0.05}$$	0.3
w_GC [ ]	${0.65}_{- 0.02}^{+ 0.02}$ $Mathematical equation: $0.65_{-0.02}^{+0.02}$$	0.67
w_Field [ ]	${0.35}_{- 0.02}^{+ 0.02}$ $Mathematical equation: $0.35_{-0.02}^{+0.02}$$	0.33

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