The 3-D shaping of NGC 6741: a massive, fast
... semi-axes, respectively), surrounded by a sharp low-excitation skin (the ionization front), and embedded into a
spherical (radius≃0.080 pc), almost-neutral, high-density (n(H I) ≃7×103 atoms cm−3 ) halo containing a large
fraction of the nebular mass (Mhalo ≥0.20 M⊙ ). The kinematics, physical condi ...