Extended MCDHF Calculations of Energy Levels and Transition Data for N i
Accurate and extensive atomic data are essential for spectroscopic analyses of stellar atmospheres and other astronomical objects. We present energy levels, lifetimes, and transition probabilities for neutral nitrogen, the sixth most abundant element in the cosmos. The calculations employ the fully...
| Glavni autori: | , , , , |
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| Format: | Članak |
| Jezik: | English |
| Izdano: |
IOP Publishing
2023-01-01
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| Serija: | The Astrophysical Journal Supplement Series |
| Teme: | |
| Online pristup: | https://doi.org/10.3847/1538-4365/acb705 |
| _version_ | 1827826799541747712 |
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| author | M. C. Li W. Li P. Jönsson A. M. Amarsi J. Grumer |
| author_facet | M. C. Li W. Li P. Jönsson A. M. Amarsi J. Grumer |
| author_sort | M. C. Li |
| collection | DOAJ |
| description | Accurate and extensive atomic data are essential for spectroscopic analyses of stellar atmospheres and other astronomical objects. We present energy levels, lifetimes, and transition probabilities for neutral nitrogen, the sixth most abundant element in the cosmos. The calculations employ the fully relativistic multiconfiguration Dirac–Hartree–Fock and relativistic configuration interaction methods, and span the 103 lowest states up to and including 2s ^2 2p ^2 5s. Our theoretical energies are in excellent agreement with the experimental data, with an average relative difference of 0.07%. In addition, our transition probabilities are in good agreement with available experimental and theoretical data. We further verify the agreement of our data with experimental results via a reanalysis of the solar nitrogen abundance, with the results from the Babushkin and Coulomb gauges consistent to 2% or 0.01 dex. We estimated the uncertainties of the computed transition data based on a statistical analysis of the differences between the transition rates in the Babushkin and Coulomb gauges. Out of the 1701 computed electric dipole transitions in this work, 83 (536) are associated with uncertainties smaller than 5% (10%). |
| first_indexed | 2024-03-12T03:17:32Z |
| format | Article |
| id | doaj.art-e5b94ca7dc7f4ea39dd59eb3bec23c82 |
| institution | Directory Open Access Journal |
| issn | 0067-0049 |
| language | English |
| last_indexed | 2024-03-12T03:17:32Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal Supplement Series |
| spelling | doaj.art-e5b94ca7dc7f4ea39dd59eb3bec23c822023-09-03T14:08:28ZengIOP PublishingThe Astrophysical Journal Supplement Series0067-00492023-01-0126512610.3847/1538-4365/acb705Extended MCDHF Calculations of Energy Levels and Transition Data for N iM. C. Li0W. Li1https://orcid.org/0000-0002-4569-1568P. Jönsson2A. M. Amarsi3https://orcid.org/0000-0002-3181-3413J. Grumer4https://orcid.org/0000-0002-6224-3492School of Electronic Information and Electrical Engineering, Huizhou University , Huizhou 516007, People's Republic of ChinaNational Astronomical Observatories, Chinese Academy of Sciences , Beijing 100012, People's Republic of China ; wxli@nao.cas.cnDepartment of Materials Science and Applied Mathematics, Malmö University , SE-205 06 Malmö, SwedenTheoretical Astrophysics, Department of Physics and Astronomy, Uppsala University , Box 516, SE-751 20 Uppsala, SwedenTheoretical Astrophysics, Department of Physics and Astronomy, Uppsala University , Box 516, SE-751 20 Uppsala, SwedenAccurate and extensive atomic data are essential for spectroscopic analyses of stellar atmospheres and other astronomical objects. We present energy levels, lifetimes, and transition probabilities for neutral nitrogen, the sixth most abundant element in the cosmos. The calculations employ the fully relativistic multiconfiguration Dirac–Hartree–Fock and relativistic configuration interaction methods, and span the 103 lowest states up to and including 2s ^2 2p ^2 5s. Our theoretical energies are in excellent agreement with the experimental data, with an average relative difference of 0.07%. In addition, our transition probabilities are in good agreement with available experimental and theoretical data. We further verify the agreement of our data with experimental results via a reanalysis of the solar nitrogen abundance, with the results from the Babushkin and Coulomb gauges consistent to 2% or 0.01 dex. We estimated the uncertainties of the computed transition data based on a statistical analysis of the differences between the transition rates in the Babushkin and Coulomb gauges. Out of the 1701 computed electric dipole transitions in this work, 83 (536) are associated with uncertainties smaller than 5% (10%).https://doi.org/10.3847/1538-4365/acb705Atomic dataSolar abundances |
| spellingShingle | M. C. Li W. Li P. Jönsson A. M. Amarsi J. Grumer Extended MCDHF Calculations of Energy Levels and Transition Data for N i The Astrophysical Journal Supplement Series Atomic data Solar abundances |
| title | Extended MCDHF Calculations of Energy Levels and Transition Data for N i |
| title_full | Extended MCDHF Calculations of Energy Levels and Transition Data for N i |
| title_fullStr | Extended MCDHF Calculations of Energy Levels and Transition Data for N i |
| title_full_unstemmed | Extended MCDHF Calculations of Energy Levels and Transition Data for N i |
| title_short | Extended MCDHF Calculations of Energy Levels and Transition Data for N i |
| title_sort | extended mcdhf calculations of energy levels and transition data for n i |
| topic | Atomic data Solar abundances |
| url | https://doi.org/10.3847/1538-4365/acb705 |
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