Infrared transitions and oscillator strengths of Ca and Mg*

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F13%3A00394508" target="_blank" >RIV/61388955:_____/13:00394508 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1051/0004-6361/201321052" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201321052</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/201321052" target="_blank" >10.1051/0004-6361/201321052</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Infrared transitions and oscillator strengths of Ca and Mg*

Popis výsledku v původním jazyce

Aims. While solar spectra contain a lot of Ca i and Mg i infrared (IR) lines, no laboratory-measured spectra of these atoms have been reported for wavenumbers below 2000 cm1. This study reports Ca i spectra in the 1300?4500 cm1 range and Mg i spectra inthe 1300?4500 cm1 range. Methods. We performed a time-resolved Fourier transform infrared spectroscopy study of a plasma created by the laser ablation of MgF2 and CaF2 targets in a vacuum. The oscillator strengths (f-values) were calculated using quantumdefect theory (QDT), which shows good agreement with the available experimental and theoretical results. Results. We report several Ca i and Mg i IR lines that have not been measured previously in laboratory. The recorded spectra allow the excitation energies of some Ca i and Mg i states with high orbital momentum (l = 4, 5) to be determined. We also provide a long list of QDT-calculated f-values for Ca i and Mg i in the range of 800?9000 cm1.

Název v anglickém jazyce

Infrared transitions and oscillator strengths of Ca and Mg*

Popis výsledku anglicky

Aims. While solar spectra contain a lot of Ca i and Mg i infrared (IR) lines, no laboratory-measured spectra of these atoms have been reported for wavenumbers below 2000 cm1. This study reports Ca i spectra in the 1300?4500 cm1 range and Mg i spectra inthe 1300?4500 cm1 range. Methods. We performed a time-resolved Fourier transform infrared spectroscopy study of a plasma created by the laser ablation of MgF2 and CaF2 targets in a vacuum. The oscillator strengths (f-values) were calculated using quantumdefect theory (QDT), which shows good agreement with the available experimental and theoretical results. Results. We report several Ca i and Mg i IR lines that have not been measured previously in laboratory. The recorded spectra allow the excitation energies of some Ca i and Mg i states with high orbital momentum (l = 4, 5) to be determined. We also provide a long list of QDT-calculated f-values for Ca i and Mg i in the range of 800?9000 cm1.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BN - Astronomie a nebeská mechanika, astrofyzika

OECD FORD obor

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Projekt

<a href="/cs/project/GAP208%2F10%2F2302" target="_blank" >GAP208/10/2302: Teoretické a experimentální studie v prebiotické chemii nukleových kyselin</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Astronomy & Astrophysics

ISSN

0004-6361

e-ISSN

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Svazek periodika

554

Číslo periodika v rámci svazku

JUN 2013

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

6

Strana od-do

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Kód UT WoS článku

000320444200024

EID výsledku v databázi Scopus

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