Collisional Removal of by O(3P)

Authors :: Pejaković, Dušan A.
Copeland, Richard A.
Slanger, Tom G.
Kalogerakis, Konstantinos S.
Source :: Chemical Physics Letters. Feb2005, Vol. 403 Issue 4-6, p372-377. 6p.
Publication Year :: 2005
Abstract: Abstract: The rate coefficient for collisional removal of by O(3P), kO, is an essential parameter in modeling the emissions from in the Earth’s thermosphere. We report a laboratory measurement of this rate coefficient at room temperature. A fluorine laser is used to photodissociate O2 at 157.6 nm, followed by detection of the time-resolved fluorescence from subsequently generated . The determined value is . The rate coefficient for collisional removal of by O2 is also determined, with a value of (1.5±0.1)×10−11 cm3s−1. [Copyright &y& Elsevier]