2010 Presentations (Communicative Events)
Molecular Hydrogen Formation in the Early Universe: New Implications From Laboratory Measurements
We have performed the first energy-resolved measurement of the associative detachment (AD) reaction H- + H → H2 + e-: This reaction is the dominant formation pathway for H2 during the epoch of first star formation in the early universe. Despite being the most fundamental anion-neutral chemical reaction, experiment and theory have failed to converge in both magnitude and energy dependence. The uncertainty in this rate coefficient severely limits our under- standing of the formation of the first stars and protogalaxies.
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2011nlaw_confC___7M.pdf application/pdf 76 KB Download File
More About This Work
- Academic Units
- Astronomy and Astrophysics
- Publisher
- NASA
- Published Here
- April 5, 2013