Radiative association of He(2(3)P) with lithium cations: Pi -> Sigma processes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F17%3A10367389" target="_blank" >RIV/00216208:11320/17:10367389 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jqsrt.2017.01.019" target="_blank" >http://dx.doi.org/10.1016/j.jqsrt.2017.01.019</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jqsrt.2017.01.019" target="_blank" >10.1016/j.jqsrt.2017.01.019</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Radiative association of He(2(3)P) with lithium cations: Pi -> Sigma processes

Popis výsledku v původním jazyce

The radiative association processes originating in the 1(3)Pi continuum of the He (2(3)P)+ Li+ collisional system are investigated in this study. The calculations of the dynamic collision processes are based on highly accurate state-of-the-art ab initio calculations of the potential energy functions for the 1(3)Pi and the three lowest (3)Sigma states of HeLi+ and the associated transition dipole-moment functions. Cross-sections for the spontaneous and stimulated radiative association processes are calculated as functions of collision energy. The corresponding rate coefficients characterizing the efficiency of the formation of the molecular ion in its a(3)Sigma(+), b(3)Sigma(+), and c(3)Sigma(+) states from the initial 1(3)Pi state are obtained over a wide range of temperatures. At very low temperatures the 1 -&gt; b process has a maximum rate-coefficient value of about 7.9 x 10(-13) cm(3) s(-1), whereas process 1 -&gt; a reaches its maximum value of 2.0 x 10(-13) cm(3) s(-1) at a temperature of about 500 K. Altogether the three radiative association processes investigated here can be considered as the continuum-to-bound state radiative transition part of the total quenching of the initial collision channel.

Název v anglickém jazyce

Radiative association of He(2(3)P) with lithium cations: Pi -> Sigma processes

Popis výsledku anglicky

The radiative association processes originating in the 1(3)Pi continuum of the He (2(3)P)+ Li+ collisional system are investigated in this study. The calculations of the dynamic collision processes are based on highly accurate state-of-the-art ab initio calculations of the potential energy functions for the 1(3)Pi and the three lowest (3)Sigma states of HeLi+ and the associated transition dipole-moment functions. Cross-sections for the spontaneous and stimulated radiative association processes are calculated as functions of collision energy. The corresponding rate coefficients characterizing the efficiency of the formation of the molecular ion in its a(3)Sigma(+), b(3)Sigma(+), and c(3)Sigma(+) states from the initial 1(3)Pi state are obtained over a wide range of temperatures. At very low temperatures the 1 -&gt; b process has a maximum rate-coefficient value of about 7.9 x 10(-13) cm(3) s(-1), whereas process 1 -&gt; a reaches its maximum value of 2.0 x 10(-13) cm(3) s(-1) at a temperature of about 500 K. Altogether the three radiative association processes investigated here can be considered as the continuum-to-bound state radiative transition part of the total quenching of the initial collision channel.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Journal of Quantitative Spectroscopy and Radiative Transfer

ISSN

0022-4073

e-ISSN

—

Svazek periodika

191

Číslo periodika v rámci svazku

20 January 2017

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

88-95

Kód UT WoS článku

000398647600012

EID výsledku v databázi Scopus

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