Gravity waves

Gravity waves

. A cross section of the solar interior showing the ray paths of sound waves (p modes) and gravity waves (g modes). Sound waves produce oscillations detected in the photosphere, and can be used to determine the internal properties of the Sun down to about 0.2 of the solar radius. Gravity waves never reach the photosphere and are instead turned around inside the Sun, probing its central depths and reaching the core.

Copyright 2010, Professor Kenneth R. Lang, Tufts University