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Time-dependent ejection velocity model for the outflow of Hen 3-1475
Astronomy and Astrophysics
We present 2D axisymmetric and 3D numerical simulations of the proto-planetary nebula Hen 3-1475, which is characterized by a remarkably highly collimated optical jet, formed by a string of shock-excited knots along the axis of the nebula. It has recently been suggested that the kinematical and morphological properties of the Hen 3-1475 jet could be the result of an ejection variability of the central source (Riera et al. 2003). The observations suggest a periodic variability of the ejectiondoi:10.1051/0004-6361:20035757 fatcat:g55onpjiajhaxc7dwmxmvgpbze