In protoplanetary environments, the plane of an accretion disk is perpendicular to the axis of rotation of the interstellar cloud out of which it forms.

Question

Quizplus · Accepted Answer

This is true. The accretion disk forms from material in the interstellar cloud that is rotating and collapsing, and as a result, the plane of the disk is perpendicular to the axis of rotation of the cloud.

In Protoplanetary Environments, the Plane of an Accretion Disk Is