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How does a main sequence star maintain hydrostatic equilibrium (what holds it so it doesn?t collapse)?

smmcmahon35

wrote...

12 years ago

How does a main sequence star maintain hydrostatic equilibrium (what holds it so it doesn?t collapse)?

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.

zyxomma77

wrote...

#2

12 years ago

Here you go again, read the summary!
http://www.astronomy.ohio-state.edu/~dhw/Intro/lec6.html

asmith12

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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