PURPOSE: To use ds9 software to analyze the X-ray spectrum of the Tycho Supernova Remnant, determine the elements present, and investigate the distribution of these elements in the remnant.

HYPOTHESIS:What elements do you expect to find? Where will the heavier elements be found in the remnant? Where will the light elements be? Explain your reasoning.







LAB NOTES AND OBSERVATIONS

Document your ds9 analysis by taking screen shots (Print Scrn button on keyboard) and pasting them into a Powerpoint or Word Document (print this document when you are finished). Write notes and observations for these screen shots in that document or on a sheet of paper stapled to this lab sheet.

Identifying elements in Tycho's SNR: (record the energy and the corresponding element name or chemical symbol and any calculations if applicable)

CONCLUSIONS:

1. What elements did you identify and how were they distributed within the remnant? Do the results of your ds9 analysis support your hypothesis?  Why or why not?

2. How do the spectra of different regions you investigated within the Tycho SNR compare to each other?  What are their similarities and differences?

3. Describe the shape of the region for the energy cut of the continuum that contained no spectral lines.  What could this represent?  Why doesn’t it contain spectral lines?

4. Describe the features and shape of the Tycho SNR.