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View Full Version : Gravity modes in the sun?...maybe



trinitree88
2010-Dec-04, 04:46 PM
Long term observations of the sun give a hint of g-modes...but it needs more work. SEE:http://arxiv.org/PS_cache/arxiv/pdf/1012/1012.0506v1.pdf

mikeg64
2010-Dec-08, 07:29 PM
detection of g modes definitely needs more work....
these are difficult to detect because the g-modes are evanescent waves.
In the convective region there are insufficient restoring forces to drive these, the reason
is due to the very instability condition which enables convection.

The net result low amplitude waves at the limit of detection

The following is a good review (same authors)
http://arxiv.org/abs/0910.0848