The local bubble
A) is a high temperature low density region in the interstellar medium around the sun.
B) is a nearby emission nebula.
C) is composed of neutral hydrogen and a fairly dense concentration of dust.
D) produces large amounts of 21-cm radiation.
E) produces radio waves from CO and other molecules.

Question

Quizplus · Accepted Answer

The local bubble is a region of the interstellar medium around the Sun characterized by high temperature and low density, created by supernova explosions.

The Local Bubble