|The Australia Telescope National Facility Colloquium|
|15:30-16:30 Wed 09 May 2007|
ATNF Marsfield Lecture Theatre
Behind the Shaping of Planetary Nebulae - Rachel Deacon Colloquium
A significant unsolved problem in low- to medium-mass stellar evolution is the cause of the variation in planetary nebulae (PN) morphologies. Around 50% of observed PN have non-spherical morphologies, whereas it is observed that their stellar progenitors are largely spherically symmetric. The likely contributors to the difference in morphologies include the influence of stellar magnetic fields and companion stars or planets, or some combination of both. The physical parameters of the central star also play a role. For example, the most bipolar PN belong to a more massive population of stars.
This loads a font easier to read for people with dyslexia.
This renders the document in high contrast mode.
This renders the document as white on black
This can help those with trouble processing rapid screen movements.