Influence of plasma environment on K-line emission in highly ionized iron atoms evaluated using a Debye-Huckel model

被引：4

作者：

Deprince, J. ^{[1
]}

Fritzsche, S. ^{[2
,3
]}

Kallman, T. R. ^{[4
]}

Palmeri, P. ^{[1
]}

Quinet, P. ^{[1
,5
]}

机构：

[1] Univ Mons, Phys Atom & Astrophys, B-7000 Mons, Belgium

[2] Helmholtz Inst Jena, D-07743 Jena, Germany

[3] Friedrich Schiller Univ Jena, Inst Theoret Phys, D-07743 Jena, Germany

[4] NASA, Goddard Space Flight Ctr, Code 662, Greenbelt, MD USA

[5] Univ Liege, IPNAS, B-4000 Liege, Belgium

来源：

CANADIAN JOURNAL OF PHYSICS | 2017年 / 95卷 / 09期

关键词：

ab initio calculations; properties of atoms; atomic spectra; X-ray spectra; inner-shell excitation and ionization; VACANCY STATES; FE-XVII; PHOTOIONIZATION; PACKAGE;

D O I：

10.1139/cjp-2016-0667

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The influence of plasma environment on the atomic parameters associated with the K-vacancy states has been investigated theoretically for several iron ions. To do this, a time-averaged Debye-Huckel potential for both the electron-nucleus and electron-electron interactions has been considered in the framework of relativistic multiconfiguration Dirac-Fock computations. More particularly, the plasma screening effects on ionization potentials, K-thresholds, transition energies, and radiative rates have been estimated in the astrophysical context of accretion disks around black holes. In the present paper, we describe the behaviour of those atomic parameters for Ne-, Na-, Ar-, and K-like iron ions.

引用

页码：858 / 861

页数：4

共 26 条

[1] The XSTAR atomic database [J].