The broadening of spectral lines can be caused by:
A) density of the hot medium.
B) thermal motion of the hot atoms.
C) rotation of the star.
D) magnetic fields of the star.
E) All of the above

Question

Quizplus · Accepted Answer

Broadening of spectral lines can be caused by multiple factors, including the density of the hot medium (pressure broadening), thermal motion of the hot atoms (thermal broadening), rotation of the star (rotation broadening), and magnetic fields of the star (magnetic broadening). Therefore, the best choice is E, which includes all of the above factors.

The Broadening of Spectral Lines Can Be Caused By