Light clusters in the liquid proto-neutron star inner crust
| Autor: | Thi, H. Dinh, Fantina, A. F., Gulminelli, F. |
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| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Eur. Phys. J. A 59, 292 (2023) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1140/epja/s10050-023-01199-x |
| Popis: | Being born hot from core-collapse supernova, the crust of the proto-neutron star is expected to be made of a Coulomb liquid and composed of an ensemble of different nuclear species. In this work, we study the beta-equilibrated proto-neutron-star crust in the liquid phase in a self-consistent multi-component approach, employing a compressible liquid-drop description of the ions including the ion centre-of-mass motion. Particular care is also devoted to the calculation of the rearrangement term, thus ensuring thermodynamic consistency. We compare the results of the multi-component plasma calculations with those obtained within a one-component (single-nucleus) approach, showing that important differences arise between the predictions of the two treatments. In particular, the abundances of helium clusters become important using a complete multi-component plasma approach, and eventually dominate the whole distribution at higher temperature in the crust. Comment: Submitted to the European Physical Journal A (EPJA) for the Topical Collection "The Nuclear Many-Body Problem" |
| Databáze: | arXiv |
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