How do debris disks and planet-forming disks differ?
A) Debris disks have higher density than planet-forming disks.
B) Debris disks contain larger amounts of gas than planet-forming disks.
C) Debris disks are found around older stars and planet-forming disks around younger stars.
D) Only debris disks are expected to be affected by the gravity of planets within them.

Question

Quizplus · Accepted Answer

Debris disks are typically found around older stars, indicating a later stage in the life of a planetary system where the formation of major planetary bodies has already occurred, and what remains is a disk of leftover debris. In contrast, planet-forming disks, also known as protoplanetary disks, are found around younger stars and contain the gas and dust necessary for the formation of planets.

How Do Debris Disks and Planet-Forming Disks Differ