[RightWhale]

The sun has preferred directions for its particle bursts doesn't it? Then add in some rotation for a gas and dust cloud like this and the debris seems like it would form a flattened disk in the case of a moderate blow-off. Seems like this shape might be common just thinking about it, and perhaps the old story that our own planets in the solar system were formed this way is the right idea after all.

[2Trievers]

What makes these white dwarfs so special? Can they become stars or planets? &;-)