Molecular recombination pathways of oxygen from quasiclassical trajectory calculations of the o3 system

Chaithanya Kondur, Kelly A. Stephani

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The pathways for molecular recombination of oxygen is examined based on quasiclassical trajectory (QCT) calculations of the O3 system described by the 11 A surface of Varga. This study focuses specifically on identifying indirect recombination pathways based on a two-step collision process for dilute gases. The principle of orbiting pairs is discussed, and these intermediate states are found to provide a viable pathway for both Lindemann and Chaperon (indirect) recombination mechanisms. These indirect mechansisms, as well as direct three-body recombination mechanisms, are found to lead to O2 recombination from analysis of the QCT results. The significance of these pathways are discussed, and the overall recombination cross section is found to favor recombination into high-lying internal energy states.

Original languageEnglish (US)
Title of host publicationAIAA Scitech 2020 Forum
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
Number of pages10
ISBN (Print)9781624105951
StatePublished - 2020
EventAIAA Scitech Forum, 2020 - Orlando, United States
Duration: Jan 6 2020Jan 10 2020

Publication series

NameAIAA Scitech 2020 Forum
Volume1 PartF


ConferenceAIAA Scitech Forum, 2020
CountryUnited States

ASJC Scopus subject areas

  • Aerospace Engineering

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