Rotational State-to-State Rate Coefficients of HeHNe+by Collision with He at Low Temperatures

Otoniel Denis-Alpizar, Lisan David Cabrera-González, Gustavo Orellana-González, Dayan Páez-Hernández

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

2 Citas (Scopus)

Resumen

The HeHNe+ molecule is expected to have, after NeH+, the strongest neon bond found so far. Furthermore, formation mechanisms in the interstellar medium (ISM) have been proposed for this molecule. If HeHNe+ is detected, the collisional rate coefficients of this species with the most abundant constituents of the ISM will be critical for employing nonlocal thermodynamic equilibrium (non-LTE) models. Therefore, the main goals of this work are to study the interaction of HeHNe+ with He and to report a set of rotational rate coefficients for this collision at low temperatures. For this purpose, the first potential energy surface for the HeHNe+ + He complex is developed from ab initio calculations. The close-coupling method is employed for studying the dynamics of the system. A |Δj| = 2 propensity rule is found for transitions starting from the rotational state j = 5. Finally, the rate coefficients for the lower 20 rotational states of HeHNe+ are reported.

Idioma originalInglés
PublicaciónACS Earth and Space Chemistry
DOI
EstadoEn prensa - 2022

Áreas temáticas de ASJC Scopus

  • Geoquímica y petrología
  • Ciencias atmosféricas
  • Ciencias planetarias y espacial

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