PCS 181 Lecture Notes - Big Bang, Wilkinson Microwave Anisotropy Probe, Local Group

• School: Ryerson University
• Department: Physics
• Course: PCS 181
• Professor: Margaret Buckby

Document Summary

The inflation process is never ending and other big bangs arise from the infinite vacuum to produce other universes. The multiverse is the set of all universes. Recall the cobe satellite which confirmed that the universal temp of space cmb 3k (2. 728k) Cobe was tasked to seek very small temp variations in the cmb. Cobe found tiny temp deviations of 0. 0003k. Galaxy theorists hypothesize that galaxies condensed of the interface b/w warmer and cooler volumes of space. The first stars formed after the big bang were extremely massive due to condensed particles (not a lot of expansion at the time) that were hundreds of times the mass of our sun. These stars only lived a few million years and exploded as supernovae, leaving black holes as remnants. These massive black holes attracted gas/dust into orbit. Over time, more matter was attracted until a galactic mass was present. Massive black hoses are found at the centres of most galaxies.