Academic Journal
Atomic data and opacity calculations in La V-X ions for the investigation of kilonova emission spectra
| العنوان: | Atomic data and opacity calculations in La V-X ions for the investigation of kilonova emission spectra |
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| المؤلفون: | Carvajal Gallego, Helena, Berengut, J.C., Palmeri, Patrick, Quinet, Pascal |
| المساهمون: | Complexys |
| المصدر: | Monthly Notices of the Royal Astronomical Society, 513 (2), 2302 - 2325 (2022-04-27) |
| بيانات النشر: | Oxford University Press |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | atomic data, neutron star mergers, opacity, Core polarization, Emission spectrums, Multi-platform, Neutron star merger, Neutron stars, Radiative parameters, Relativistic Hartree-Fock methods, Spectral line, Theoretical methods, Astronomy and Astrophysics, Space and Planetary Science, Physical, chemical, mathematical & earth Sciences, Physics, Physique, chimie, mathématiques & sciences de la terre |
| الوصف: | peer reviewed ; A new set of radiative parameters for spectral lines in La v-x ions is reported in this paper. These data were determined through the use of a multiplatform approach involving three independent theoretical methods, i.e. the relativistic Hartree-Fock method including core-polarization corrections (HFR + CPOL), the multiconfiguration Dirac-Hartree-Fock (MCDHF) method, and the particle-hole configuration-interaction (PH-CI) method implemented in the AMBiT program. Based on cross-comparisons between the results obtained with these three methods, and from comparisons with the few previously published experimental and theoretical data, the most complete and reliable set of wavelengths, transition probabilities, and oscillator strengths was then used to determine the necessary opacities for the analysis of the spectra emitted in the early phases of kilonovae following neutron star mergers, i.e. for typical conditions corresponding to temperatures T > 20,000 K, a density ρ = 10-10 g cm-3, and a time after the merger t = 0.1 d. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 0035-8711 1365-2966 |
| Relation: | urn:issn:0035-8711; urn:issn:1365-2966; https://orbi.umons.ac.be/handle/20.500.12907/43046; info:hdl:20.500.12907/43046 |
| DOI: | 10.1093/mnras/stac1063 |
| الاتاحة: | https://orbi.umons.ac.be/handle/20.500.12907/43046 https://hdl.handle.net/20.500.12907/43046 https://doi.org/10.1093/mnras/stac1063 |
| Rights: | restricted access ; http://purl.org/coar/access_right/c_16ec ; info:eu-repo/semantics/restrictedAccess |
| رقم الانضمام: | edsbas.782D8DBE |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 00358711 13652966 |
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| DOI: | 10.1093/mnras/stac1063 |