Shaping of Planetary Nebulae by Magnetic Fields

G. Pascoli, L. Lahoche
2008 Publications of the Astronomical Society of the Pacific  
Superwind production triggered by internal MHD effects in Red Giants is considered. Huge vortices of gas are predicted in and above the atmosphere during the peaked phase of ejection. Examination of the results clearly indicates a strong departure from the idealized spherical photosphere for these objects. Incidence on nonsphericity commonly observed in many planetary nebulae is discussed.
doi:10.1086/594377 fatcat:6cwb2lgfzfelxeotbi4i7xum7y