The velocity field of the Scorpius-Centaurus OB association - I. Method and general properties

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Table 1

Marginal posterior means of several characteristic values of the flow component fields and the absolute value fields, for V_main, V_secondary, and V_δ.

	Max km s⁻¹	Min km s⁻¹	r.m.s. km s⁻¹	p.s. slope Unitless
v_main_,x	3.3 ± 0.2	−8.2 ± 0.1	1.97 ± 0.03	−3.1 ± 0.2
v_main_,y	8.4 ± 0.1	−3.4 ± 0.1	1.68 ± 0.03	−2.5 ± 0.1
v_main_,z	2.6 ± 0.1	−6.2 ± 0.1	1.05 ± 0.01	−2.5 ± 0.3
\|V_main\|	10.1 ± 0.1	0.2 ± 0.1	1.68 ± 0.02	N.A.

v_sec_,x	7.3 ± 0.7	−2.4 ± 0.4	1.71 ± 0.12	N.A.
v_sec_,y	9.4 ± 0.2	−1.3 ± 0.2	1.64 ± 0.03	N.A.
v_sec_,z	1.4 ± 0.3	−6.0 ± 0.2	1.04 ± 0.03	N.A.
\|V_sec\|	10.2 ± 0.2	1.0 ± 0.2	1.42 ± 0.06	N.A.

v_δ,x	5.8 ± 0.7	−1.8 ± 0.7	1.31 ± 0.18	−10.3 ± 1.4
v_δ,y	2.5 ± 0.2	−1.1 ± 0.2	0.65 ± 0.05	−14.0 ± 1.8
v_δ,z	1.2 ± 0.2	−4.4 ± 0.2	0.83 ± 0.05	−3.7 ± 0.3
\|V_δ\|	6.3 ± 0.4	0.4 ± 0.2	1.26 ± 0.14	N.A.

Notes. r.m.s. denotes the root mean square and p.s. the (unitless) power spectrum slope. The p.s. values are only shown if they are part of the forward model, otherwise no value (N.A.) is given.

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