1. Visible Wavelength Spectroscopy of Methane-Argon Ices
Zack Thompson

2. What are we doing Making astrophysical ices
Freezing mixtures of Methane and Argon
Take Spectra
Remove wavelength regions
Compare to spectra shifts from Kuiper belt objects

3. Basics of Vibrational Spectra
Absorption is caused vibrations in the infrared
Combinations of vibrational modes cause the absorption in the visible

4. Initial Spectra

5. Divided Spectra

6. Final Data Processing Procedures
Fit cubic splines to data
Integrate
Calculate shifts relative to pure methane

7. 7200 band

8. 8900 band

9. 9920 band

10. Special Thanks to: Dr. David Cornelison Dr. Will Grundy
Dr. Steve Tegler
Jennifer Burt