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astro-ph2001
Late AGB Magnetic Cycles: MHD Solutions for the HST PN Rings
Guillermo Garcia-Segura, Jose Alberto Lopez, Jose Franco
The Hubble Space Telescope has revealed the existence of multiple, regularly spaced, and faint concentric shells around some planetary nebulae. Here we present 2(1/2)D magnetohydro…
astro-ph1999
FLIERs as stagnation knots from partially collimated outflows
Wolfgang Steffen, Jose Alberto Lopez
We propose a new model for the formation of fast, low-ionization emission regions (FLIERs) in planetary nebulae that is able to account for many of their attendant characteristics…