Atom-Rydberg Atom Collisions in Hydrogen Plasmas: Cross Sections and Rate Coefficients

V. A. Srećković, M. S. Dimitrijević, Lj M. Ignjatović, N. N. Bezuglov, A. N. Klyucharev

Research output

Abstract

Non-LTE modelling requires accurate atomic data e.g. collisional excitation and ionization cross-sections and rate coefficients. In order to improve the modeling of the solar photosphere, as well as to model atmospheres of other similar and cooler stars where the main constituent is also hydrogen, it is necessary to take into account the influence of all the relevant collisional processes on the excited-atom populations in weakly ionized hydrogen plasmas. In this context we present the data needed for the inclusion of the specific atomic collisional processes in the investigation of the optical and kinetic properties of weakly ionized stellar atmospheres layers. The ionization processes in collisions of excited hydrogen atoms with atoms in ground states were considered for the principal quantum numbers 2 ≤ n ≤ 20 and temperatures 4000 K ≤ T ≤ 20000 K.

Original languageEnglish
Article number012022
JournalJournal of Physics: Conference Series
Volume1289
Issue number1
DOIs
Publication statusPublished - 23 Aug 2019
Event24th International Conference on Spectral Line Shapes, ICSLS 2018 - Dublin
Duration: 17 Jun 201822 Jun 2018

Fingerprint

hydrogen plasma
stellar atmospheres
collisions
cross sections
ionization cross sections
coefficients
photosphere
coolers
quantum numbers
atoms
hydrogen atoms
inclusions
optical properties
atmospheres
stars
ionization
ground state
kinetics
hydrogen
excitation

Scopus subject areas

  • Physics and Astronomy(all)

Cite this

@article{f7e806c15621413482b8e9308e26f497,
title = "Atom-Rydberg Atom Collisions in Hydrogen Plasmas: Cross Sections and Rate Coefficients",
abstract = "Non-LTE modelling requires accurate atomic data e.g. collisional excitation and ionization cross-sections and rate coefficients. In order to improve the modeling of the solar photosphere, as well as to model atmospheres of other similar and cooler stars where the main constituent is also hydrogen, it is necessary to take into account the influence of all the relevant collisional processes on the excited-atom populations in weakly ionized hydrogen plasmas. In this context we present the data needed for the inclusion of the specific atomic collisional processes in the investigation of the optical and kinetic properties of weakly ionized stellar atmospheres layers. The ionization processes in collisions of excited hydrogen atoms with atoms in ground states were considered for the principal quantum numbers 2 ≤ n ≤ 20 and temperatures 4000 K ≤ T ≤ 20000 K.",
keywords = "ATOMS, Ground state, Hydrogen, Impact ionization, Quantum theory, Solar power generation, spectroscopy",
author = "Srećković, {V. A.} and Dimitrijević, {M. S.} and Ignjatović, {Lj M.} and Bezuglov, {N. N.} and Klyucharev, {A. N.}",
year = "2019",
month = "8",
day = "23",
doi = "10.1088/1742-6596/1289/1/012022",
language = "English",
volume = "1289",
journal = "Journal of Physics: Conference Series",
issn = "1742-6588",
publisher = "IOP Publishing Ltd.",
number = "1",

}

Atom-Rydberg Atom Collisions in Hydrogen Plasmas : Cross Sections and Rate Coefficients. / Srećković, V. A.; Dimitrijević, M. S.; Ignjatović, Lj M.; Bezuglov, N. N.; Klyucharev, A. N.

In: Journal of Physics: Conference Series, Vol. 1289, No. 1, 012022, 23.08.2019.

Research output

TY - JOUR

T1 - Atom-Rydberg Atom Collisions in Hydrogen Plasmas

T2 - Cross Sections and Rate Coefficients

AU - Srećković, V. A.

AU - Dimitrijević, M. S.

AU - Ignjatović, Lj M.

AU - Bezuglov, N. N.

AU - Klyucharev, A. N.

PY - 2019/8/23

Y1 - 2019/8/23

N2 - Non-LTE modelling requires accurate atomic data e.g. collisional excitation and ionization cross-sections and rate coefficients. In order to improve the modeling of the solar photosphere, as well as to model atmospheres of other similar and cooler stars where the main constituent is also hydrogen, it is necessary to take into account the influence of all the relevant collisional processes on the excited-atom populations in weakly ionized hydrogen plasmas. In this context we present the data needed for the inclusion of the specific atomic collisional processes in the investigation of the optical and kinetic properties of weakly ionized stellar atmospheres layers. The ionization processes in collisions of excited hydrogen atoms with atoms in ground states were considered for the principal quantum numbers 2 ≤ n ≤ 20 and temperatures 4000 K ≤ T ≤ 20000 K.

AB - Non-LTE modelling requires accurate atomic data e.g. collisional excitation and ionization cross-sections and rate coefficients. In order to improve the modeling of the solar photosphere, as well as to model atmospheres of other similar and cooler stars where the main constituent is also hydrogen, it is necessary to take into account the influence of all the relevant collisional processes on the excited-atom populations in weakly ionized hydrogen plasmas. In this context we present the data needed for the inclusion of the specific atomic collisional processes in the investigation of the optical and kinetic properties of weakly ionized stellar atmospheres layers. The ionization processes in collisions of excited hydrogen atoms with atoms in ground states were considered for the principal quantum numbers 2 ≤ n ≤ 20 and temperatures 4000 K ≤ T ≤ 20000 K.

KW - ATOMS

KW - Ground state

KW - Hydrogen

KW - Impact ionization

KW - Quantum theory

KW - Solar power generation

KW - spectroscopy

UR - http://www.scopus.com/inward/record.url?scp=85073531603&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/1289/1/012022

DO - 10.1088/1742-6596/1289/1/012022

M3 - Conference article

AN - SCOPUS:85073531603

VL - 1289

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

IS - 1

M1 - 012022

ER -