Effective hyperfine-structure functions of ammonia

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F16%3A00463605" target="_blank" >RIV/61388963:_____/16:00463605 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/16:10330454

Výsledek na webu

<a href="http://dx.doi.org/10.3847/0004-637X/824/2/147" target="_blank" >http://dx.doi.org/10.3847/0004-637X/824/2/147</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3847/0004-637X/824/2/147" target="_blank" >10.3847/0004-637X/824/2/147</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effective hyperfine-structure functions of ammonia

Popis výsledku v původním jazyce

The hyperfine structure of the rotation-inversion (nu(2) = 0(+), 0(-), 1(+), 1(-)) states of the (NH3)-N-14 and (NH3)-N-15 ammonia isotopomers is rationalized in terms of effective (ro-inversional) hyperfine-structure (hfs) functions. These are determined by fitting to available experimental data using the Hougen's effective hyperfine-structure Hamiltonian within the framework of the non-rigid inverter theory. Involving only a moderate number of mass independent fitting parameters, the fitted hfs functions provide a fairly close reproduction of a large majority of available experimental data, thus evidencing adequacy of these functions for reliable prediction. In future experiments, this may help us derive spectroscopic constants of observed inversion and rotation-inversion transitions deperturbed from hyperfine effects. The deperturbed band centers of ammonia come to the forefront of fundamental physics especially as the probes of a variable proton-to-electron mass ratio.

Název v anglickém jazyce

Effective hyperfine-structure functions of ammonia

Popis výsledku anglicky

The hyperfine structure of the rotation-inversion (nu(2) = 0(+), 0(-), 1(+), 1(-)) states of the (NH3)-N-14 and (NH3)-N-15 ammonia isotopomers is rationalized in terms of effective (ro-inversional) hyperfine-structure (hfs) functions. These are determined by fitting to available experimental data using the Hougen's effective hyperfine-structure Hamiltonian within the framework of the non-rigid inverter theory. Involving only a moderate number of mass independent fitting parameters, the fitted hfs functions provide a fairly close reproduction of a large majority of available experimental data, thus evidencing adequacy of these functions for reliable prediction. In future experiments, this may help us derive spectroscopic constants of observed inversion and rotation-inversion transitions deperturbed from hyperfine effects. The deperturbed band centers of ammonia come to the forefront of fundamental physics especially as the probes of a variable proton-to-electron mass ratio.

Druh

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

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

—

Projekt

<a href="/cs/project/GA15-10267S" target="_blank" >GA15-10267S: Molekulární procesy ve vesmíru</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Astrophysical Journal

ISSN

0004-637X

e-ISSN

—

Svazek periodika

824

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

—

Kód UT WoS článku

000381912800083

EID výsledku v databázi Scopus

2-s2.0-84978219597