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Home Q & A Board Biology-Related Homework Help Zoology and Botany (Moderator: ehd123)
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smmcmahon35 smmcmahon35
wrote...
12 years ago
How does a main sequence star maintain hydrostatic equilibrium (what holds it so it doesn?t collapse)?
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_biology Author
wrote...
#1
12 years ago
It is a fight between gravity pulling inward and heat of fusion pushing outward. During the time the star is a main sequence star, those forces are in equilibrium, so it doesn't collapse nor does it blow up.
wrote...
#2
12 years ago
Here you go again, read the summary!
http://www.astronomy.ohio-state.edu/~dhw/Intro/lec6.html
wrote...
#3
12 years ago
Theres a force created by a pressure gradient. The core of the sun is hot and dense (high pressure). The surface is cooler and not so dense (low pressure). The pressure difference creates a force that opposes gravity.

There are other forces in play like radiation pressure gradients and stuff like that.
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