Modelling Thomson Scattering in a Hydrogen Plasma at Stellar Interior Conditions Using the Hypernetted‐Chain Approach
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Wiley
2025
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| author | Samuel Schumacher Julian Lütgert Dirk O. Gericke Mandy Bethkenhagen Tilo Döppner Otto L. Landen Nathaniel R. Shaffer Charles E. Starrett Dominik Kraus |
| author_facet | Samuel Schumacher Julian Lütgert Dirk O. Gericke Mandy Bethkenhagen Tilo Döppner Otto L. Landen Nathaniel R. Shaffer Charles E. Starrett Dominik Kraus Samuel Schumacher Julian Lütgert Dirk O. Gericke Mandy Bethkenhagen Tilo Döppner Otto L. Landen Nathaniel R. Shaffer Charles E. Starrett Dominik Kraus |
| collection | Wiley Open Access |
| contents | Modelling Thomson Scattering in a Hydrogen Plasma at Stellar Interior Conditions Using the Hypernetted‐Chain Approach Samuel Schumacher Julian Lütgert Dirk O. Gericke Mandy Bethkenhagen Tilo Döppner Otto L. Landen Nathaniel R. Shaffer Charles E. Starrett Dominik Kraus Contributions to Plasma Physics ABSTRACT Under the extreme conditions found in small stars, where electron degeneracy and Coulomb coupling are significant, accurate modeling of Thomson scattering is crucial for determining opacity, a primary quantity for stellar energy transport. We use hypernetted‐chain calculations, incorporating quantum pseudopotentials and electron‐exchange effects to obtain the electron–electron static structure factor to calculate the Thomson scattering transport cross‐section for conditions prevailing in the interior of small stars. These results are compared to those from average‐atom simulations and analytical calculations. Our findings support laboratory astrophysics experiments aimed at benchmarking opacity models for stellar interiors, particularly for red dwarf stars, and help to bridge theoretical models with observations. 10.1002/ctpp.70002 http://creativecommons.org/licenses/by/4.0/ |
| doi_str_mv | 10.1002/ctpp.70002 |
| format | Artículo Open Access |
| id | wiley_oa_10_1002_ctpp_70002 |
| institution | Wiley Open Access |
| license_str_mv | http://creativecommons.org/licenses/by/4.0/ |
| publishDate | 2025 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | Modelling Thomson Scattering in a Hydrogen Plasma at Stellar Interior Conditions Using the Hypernetted‐Chain Approach Samuel Schumacher Julian Lütgert Dirk O. Gericke Mandy Bethkenhagen Tilo Döppner Otto L. Landen Nathaniel R. Shaffer Charles E. Starrett Dominik Kraus Contributions to Plasma Physics Modelling Thomson Scattering in a Hydrogen Plasma at Stellar Interior Conditions Using the Hypernetted‐Chain Approach Samuel Schumacher Julian Lütgert Dirk O. Gericke Mandy Bethkenhagen Tilo Döppner Otto L. Landen Nathaniel R. Shaffer Charles E. Starrett Dominik Kraus Contributions to Plasma Physics ABSTRACT Under the extreme conditions found in small stars, where electron degeneracy and Coulomb coupling are significant, accurate modeling of Thomson scattering is crucial for determining opacity, a primary quantity for stellar energy transport. We use hypernetted‐chain calculations, incorporating quantum pseudopotentials and electron‐exchange effects to obtain the electron–electron static structure factor to calculate the Thomson scattering transport cross‐section for conditions prevailing in the interior of small stars. These results are compared to those from average‐atom simulations and analytical calculations. Our findings support laboratory astrophysics experiments aimed at benchmarking opacity models for stellar interiors, particularly for red dwarf stars, and help to bridge theoretical models with observations. 10.1002/ctpp.70002 http://creativecommons.org/licenses/by/4.0/ |
| title | Modelling Thomson Scattering in a Hydrogen Plasma at Stellar Interior Conditions Using the Hypernetted‐Chain Approach |
| topic | Contributions to Plasma Physics |
| url | https://onlinelibrary.wiley.com/doi/10.1002/ctpp.70002 |