Origin of the Solar System

Origin of the Solar System - It was given a push by some...

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Origin of the Solar System Depends on two principles of Physics: Law of Gravity gravitational potential energy heat Conservation of angular momentum and Basic chemistry Solar Nebula The nebular theory holds that our Solar System formed out of a nebula which collapsed under its own gravity. Observational evidence We observe stars in the process of forming today. They are always found within interstellar clouds of gas. Gravitational Collapse The solar nebular was initially somewhat spherical and a few light years in diameter.
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very cold rotating slightly
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Unformatted text preview: It was given a push by some event. perhaps the shock wave from a nearby supernova As the nebula shrank, gravity increased, causing collapse. As the nebula falls inward, gravitational potential energy is converted to heat. Conservation of Energy As the nebulas radius decreases, it rotates faster Conservation of Angular Momentum As the nebula collapses, clumps of gas collide & merge. Their random velocities average out into the nebulas direction of rotation. The spinning nebula assumes the shape of a disk. As the nebula collapses, it heats up, spins faster, and flattens...
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This note was uploaded on 09/12/2011 for the course AST 2002 taught by Professor Britt during the Spring '08 term at University of Central Florida.

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Origin of the Solar System - It was given a push by some...

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