The Michigan Math and Science Scholars 2008
ASTRONOMY: Climbing the Distance Ladder: How Astronomers Survey the Universe
   
The only prerequisite for this class is enthusiasm! However, it will not hurt to come equipped with some basic computer skills. Last year, scholars detected the dark matter halo of our Galaxy, by analyzing data such as those in this Excel spreadsheet, to map the Galaxy's rotation.

Click below to download the example spreadsheet.
Here are last year's scholars at work with the Small Radio Telescope, preparing to take the data in that spreadsheet:
And here is the rotation curve of our Galaxy that they produced:




Can you use Excel's built-in help, or an online tutorial, to learn how to average the numbers between rows 5 and 36, in each of columns G through BE, and histogram the results? That's the first step in getting one point on the plot shown here, and a good introduction to using spreadsheet data.