The VMC survey - LIV. The internal kinematics of the Large Magellanic Cloud with new VISTA observations

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Table 1.

Dynamical parameters and their associated uncertainties obtained from the MCMC sampling.

Parameters	Entire Sample	Old population	Young Population
α₀
(deg)	$80.30 \begin{matrix} + 0.05 \\ - 0.05 \end{matrix}$ $80.30 \substack{+0.05 \\ -0.05}$	$80.26 \begin{matrix} + 0.06 \\ - 0.06 \end{matrix}$ $80.26 \substack{+0.06 \\ -0.06}$	$80.20 \begin{matrix} + 0.06 \\ - 0.06 \end{matrix}$ $80.20 \substack{+0.06 \\ -0.06}$
δ₀
(deg)	$- 69.27 \begin{matrix} + 0.02 \\ - 0.02 \end{matrix}$ $-69.27 \substack{+0.02 \\ -0.02}$	$- 69.21 \begin{matrix} + 0.02 \\ - 0.02 \end{matrix}$ $-69.21 \substack{+0.02 \\ -0.02}$	$- 69.64 \begin{matrix} + 0.04 \\ - 0.04 \end{matrix}$ $-69.64 \substack{+0.04 \\ -0.04}$
μ_W, 0
(mas yr⁻¹)	$- 1.854 \begin{matrix} + 0.001 \\ - 0.001 \end{matrix}$ $-1.854 \substack{+0.001 \\ -0.001}$	$- 1.854 \begin{matrix} + 0.001 \\ - 0.001 \end{matrix}$ $-1.854 \substack{+0.001 \\ -0.001}$	–
μ_N, 0
(mas yr⁻¹)	$0.330 \begin{matrix} + 0.003 \\ - 0.003 \end{matrix}$ $0.330 \substack{+0.003 \\ -0.003}$	$0.328 \begin{matrix} + 0.003 \\ - 0.003 \end{matrix}$ $0.328 \substack{+0.003 \\ -0.003}$	–
i
(deg)	$32.8 \begin{matrix} + 0.2 \\ - 0.2 \end{matrix}$ $32.8 \substack{+0.2 \\ -0.2}$	$32.8 \begin{matrix} + 0.2 \\ - 0.2 \end{matrix}$ $32.8 \substack{+0.2 \\ -0.2}$	$32.8 \begin{matrix} + 0.3 \\ - 0.3 \end{matrix}$ $32.8 \substack{+0.3 \\ -0.3}$
Θ
(deg)	$134.5 \begin{matrix} + 0.5 \\ - 0.5 \end{matrix}$ $134.5 \substack{+0.5 \\ -0.5}$	$136.5 \begin{matrix} + 0.5 \\ - 0.5 \end{matrix}$ $136.5 \substack{+0.5 \\ -0.5}$	$134.3 \begin{matrix} + 0.3 \\ - 0.3 \end{matrix}$ $134.3 \substack{+0.3 \\ -0.3}$
R₀
(kpc)	$2.94 \begin{matrix} + 0.04 \\ - 0.03 \end{matrix}$ $2.94 \substack{+0.04 \\ -0.03}$	$3.14 \begin{matrix} + 0.04 \\ - 0.04 \end{matrix}$ $3.14 \substack{+0.04 \\ -0.04}$	$2.47 \begin{matrix} + 0.16 \\ - 0.16 \end{matrix}$ $2.47 \substack{+0.16 \\ -0.16}$
η	$2.0 \begin{matrix} + 0.1 \\ - 0.1 \end{matrix}$ $2.0 \substack{+0.1 \\ -0.1}$	$2.0 \begin{matrix} + 0.1 \\ - 0.1 \end{matrix}$ $2.0 \substack{+0.1 \\ -0.1}$	$2.1 \begin{matrix} + 0.2 \\ - 0.2 \end{matrix}$ $2.1 \substack{+0.2 \\ -0.2}$
V₀
(km s⁻¹)	$91.94 \begin{matrix} + 1.80 \\ - 1.59 \end{matrix}$ $91.94 \substack{+1.80 \\ -1.59}$	$92.45 \begin{matrix} + 1.95 \\ - 1.72 \end{matrix}$ $92.45 \substack{+1.95 \\ -1.72}$	$94.63 \begin{matrix} + 2.77 \\ - 2.52 \end{matrix}$ $94.63 \substack{+2.77 \\ -2.52}$

Notes. The systemic motion of the young population is fixed to the value of the entire sample (see text for details).

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