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Table 3

Best-fit model parameters for the finger components of NGC 6302.

Structure r h offset PA i δV n T Vexp
(1016 cm) (1016 cm) (1016 cm) (km s-1) (cm-3) (K) (km s-1)

Finger inner sections constant value

Finger E inner 2.5 1.1 20.2 155o 192o 2 3 80 20
Finger W inner 2.8 3.5 18.4 215o 195o 4 8 70 26

Finger outer sections linear V max

Finger E outer 2.5 11.4 26.8 155o 192o 2 4 50 28
Finger W outer 2.8 10.5 25.9 215o 195o 2 2 50 38

Notes. The sizes correspond to a distance to the nebula of 1.17 kpc. The uncertainty range is included for every parameter except for those concerning the geometry. Parameters: r is the radius of the cylinder defining the finger, and h its height. “offset” refers to the displacement of the centre of a given structure from the central star, in the direction defined by PA and i. PA and i are the position angle and inclination of the symmetry axis of the structure, as defined within the SHAPE modifier “PA/Inc Rotation”. δV, n, and T are the microturbulence velocity, the density, and the temperature, respectively. Vexp is the expansion velocity of the given structure. The velocity of the inner section of each finger is a constant value. The value of the velocity shown for the outer section is the velocity of the farthest edge from the star, with the velocity following a ballistic expansion pattern.

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