Non-radiative inelastic processes in lithium-helium ion-atom collisions

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10286220" target="_blank" >RIV/00216208:11320/14:10286220 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1051/0004-6361/201423578" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201423578</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/201423578" target="_blank" >10.1051/0004-6361/201423578</a>

Result language

angličtina

Original language name

Non-radiative inelastic processes in lithium-helium ion-atom collisions

Original language description

Aims. The aims are to estimate efficiencies of non-radiative inelastic processes in lithium-helium ion-atom collisions and to compare them to those for radiative processes. Methods. Non-radiative inelastic cross-sections and rate coefficients for different lithium-helium ion-atom collisions are estimated by means of the recently proposed branching probability current method, which is based on the accurate ab initio adiabatic Born-Oppenheimer potentials that have been recently calculated for the low-lying (1,3)Sigma(+) and (1,3)Pi states of the LiHe+ ion. Results. It is shown that at low temperatures the radiative depopulation in Li+ + He and Li + He+ collisions dominates over the non-radiative processes, while in Li+ + He(2s S-3) collisions the non-radiative processes dominate over the radiative association at temperatures above 3000 K, which can be expected to have some influence on depopulations of metastable He in high temperature astrophysical environments.

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BN - Astronomy and celestial mechanics, astrophysics

OECD FORD branch

—

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2014

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Astronomy and Astrophysics

ISSN

0004-6361

e-ISSN

—

Volume of the periodical

565

Issue of the periodical within the volume

May 2014

Country of publishing house

FR - FRANCE

Number of pages

5

Pages from-to

—

UT code for WoS article

000336730900106

EID of the result in the Scopus database

—