Natural Sciences >> PhysicsObtaining the Age of the Universeby Andrew Shatzer
Submitted : Spring 2013 I began by using the VIREO telescope simulator program to observe extragalactic object’s (galaxy’s) apparent magnitude and redshift. By using these two important datasets, I was able to work out their distance from the Earth in parsecs and their recessional velocity in km/sec. I then converted the data into Megaparsecs and averaged the redshift velocities of the H and K lines of calcium and plotted these datasets on a graph with Distance (D) in Megaparsecs on the x axis and Velocity (V) in km/sec along the y axis. I then used the same technique as Hubble to find a minimized correlation in the data points known as a Squared Error of Regression Line to create a trendline in the data. Using a random point on the trendline, I was able to work out the Hubble constant (V/D), convert it to Hubble Time (by cancelling out km’s/Mpc), take the inverse (1/H), and work out the age of the universe in seconds, which could then easily be converted to years. Related Links:
