MCDHF and RCI calculations of energy levels, lifetimes, and transition rates in Si III and Si IV
(2019) In Astronomy and Astrophysics 631.- Abstract
We present extensive multiconfiguration Dirac-Hartree-Fock and relativistic configuration interaction calculations including 106 states in doubly ionized silicon (Si III) and 45 states in triply ionized silicon (Si IV), which are important for astrophysical determination of plasma properties in different objects. These calculations represents an important extension and improvement of earlier calculations especially for Si III. The calculations are in good agreement with available experiments for excitation energies, transition properties, and lifetimes. Important deviations from the NIST-database for a selection of perturbed Rydberg series are discussed in detail.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/d17ed426-c7d8-4916-83e4-505177cd1ef4
- author
- Atalay, B. LU ; Brage, T. LU ; Jönsson, P. and Hartman, H.
- organization
- publishing date
- 2019-11-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Atomic data
- in
- Astronomy and Astrophysics
- volume
- 631
- article number
- A29
- publisher
- EDP Sciences
- external identifiers
-
- scopus:85103687785
- ISSN
- 0004-6361
- DOI
- 10.1051/0004-6361/201935618
- language
- English
- LU publication?
- yes
- id
- d17ed426-c7d8-4916-83e4-505177cd1ef4
- date added to LUP
- 2022-03-30 15:35:09
- date last changed
- 2022-03-30 17:00:48
@article{d17ed426-c7d8-4916-83e4-505177cd1ef4, abstract = {{<p>We present extensive multiconfiguration Dirac-Hartree-Fock and relativistic configuration interaction calculations including 106 states in doubly ionized silicon (Si III) and 45 states in triply ionized silicon (Si IV), which are important for astrophysical determination of plasma properties in different objects. These calculations represents an important extension and improvement of earlier calculations especially for Si III. The calculations are in good agreement with available experiments for excitation energies, transition properties, and lifetimes. Important deviations from the NIST-database for a selection of perturbed Rydberg series are discussed in detail.</p>}}, author = {{Atalay, B. and Brage, T. and Jönsson, P. and Hartman, H.}}, issn = {{0004-6361}}, keywords = {{Atomic data}}, language = {{eng}}, month = {{11}}, publisher = {{EDP Sciences}}, series = {{Astronomy and Astrophysics}}, title = {{MCDHF and RCI calculations of energy levels, lifetimes, and transition rates in Si III and Si IV}}, url = {{http://dx.doi.org/10.1051/0004-6361/201935618}}, doi = {{10.1051/0004-6361/201935618}}, volume = {{631}}, year = {{2019}}, }