Dissociative recombination of BeH+ in the interstellar medium

S. Niyonzima; F. Lique; K. Chakrabarti; Å. Larson; A.E. Orel; I.F. Schneider

doi:10.1051/eas/1258048

All issues

Volume 58 (2012)

EAS Publications Series, 58 (2012) 291-294

Abstract

Open Access

Issue		EAS Publications Series Volume 58, 2012 ECLA - European Conference on Laboratory Astrophysics


Page(s)		291 - 294
DOI		https://doi.org/10.1051/eas/1258048
Published online		13 February 2013

European Conference on Laboratory Astrophysics - ECLA
C. Stehlé, C. Joblin and L. d’Hendecourt (eds)
EAS Publications Series, 58 (2012) 291-294

Dissociative recombination of BeH⁺ in the interstellar medium

S. Niyonzima¹^,2, F. Lique¹, K. Chakrabarti¹^,3, Å. Larson⁴, A.E. Orel⁵ and I.F. Schneider¹

¹ LOMC-UMR 6294, CNRS-Université du Havre, 76058 Le Havre, France
² Département de Physique, Faculté des Sciences, Université du Burundi, 2700 Bujumbura-Burundi
³ Dept. of Mathematics, Scottich Church College, 1&3 Urquhart Sq., Kolkata 700006, India
⁴ Dept. of Physics, Stockholm University, AlbaNova University Center, 106 91 Stockholm, Sweden
⁵ Dept. of Chemical Engineering and Materials Science, University of California, Davis, California 95616, USA

Abstract

We report a theoretical study of dissociative recombination (DR) of BeH⁺ by low energy electron impact, using previously computed molecular data as input for a Multichannel Quantum Defect Theory (MQDT) approach. Three electronic symmetries of BeH, ²Π, ²Σ⁺, and ²Δ have been included in the calculations. We present cross sections and thermal rate coefficients ready to be used in the modelling of the BeH⁺ abundance in the interstellar medium and stellar atmosphere.