I work on solving cutting-edge problems in astrophysics, using innovative spectroscopic designs. My research interests range from the metagalactic ionizing background to comets. I have been or am a principal and co-investigator on a number of Sounding-Rocket FUSE, HST and Spitzer programs to observe atomic and molecular emission, scattering and absorption of far and extreme ultraviolet radiation, along with the concomitant fluorescence into ultraviolet, optical and infrared bands, in a variety of galactic and extra-galactic environments.
This will count as one of your downloads.
You will have access to both the presentation and article (if available).
We have begun testing and have preliminary results using the Long-slit Imaging Dual Order Spectrograph. Spectral testing of the Lyman-alpha line profiles are vital for advancing hydrogen absorption cell technology in future Lyman ultraviolet missions. These tests can reveal whether or not molecular hydrogen fluorescence is occurring from either electron impact excitation or recombination in higher energy states. Our preliminary results have shown attenuation of the source Lyman-alpha signal by roughly 73% with an associated optical depth of 1.3 and hydrogen column density of 2.2 x 1013. Future tests will involve cooling down our lamp/hydrogen cell system as well as testing multiple filament configurations for the most efficient input power possible.
View contact details
No SPIE Account? Create one
