Posted: Jan 06, 2019 1:54 am
I could be wrong, but I would surprised if the energy density changes significantly on a moment by moment basis in a star (our Sun), though at some point in a hopefully distant future all bets are off. I have read it takes hunderds of years for a photon to escape the core of our sun ... at least on average.
But plasma can be compressed and water cannot ( mostly apparently ). So you can have a plume of very hot very dense plasma rise through the sun and emerge as a CME ....
but I could be wrong and CMEs might be compressed by the magnetic fields at the surface.
Came across this
http://news.mit.edu/2014/a-river-of-pla ... e-sun-0306