| Texto completo | |
| Autor(es): |
Issifu, Adamu
;
Thakur, Prashant
;
da Silva, Franciele M.
;
Marquez, Kau D.
;
Menezes, Debora P.
;
Dutra, M.
;
Lourenco, O.
;
Frederico, Tobias
Número total de Autores: 8
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PHYSICAL REVIEW D; v. 111, n. 8, p. 16-pg., 2025-04-17. |
| Resumo | |
For the first time, we use relativistic mean-field approximation with density-dependent couplings, adjusted by the Density-Dependent Meson-Exchange 2 (DDME2) parameterization, to investigate the effects of dark matter on supernova remnants. We calculate the nuclear equation of state for nuclear and dark matter separately, under the thermodynamic conditions related to the evolution of supernova remnants. A mirrored model is adopted for dark matter, and its effect on remnant matter is studied using a two-fluid scenario. At each stage of the remnant evolution, we assume that dark and ordinary matter have the same entropy and lepton fraction, and a fixed proportion of dark matter mass fraction is added to the stellar matter to observe its effects on some microscopic and macroscopic properties of the star. We observe that dark matter in the remnant core reduces the remnant's maximum mass, radius, and tidal deformability. Moreover, dark matter heats the remnant matter and alters particle distributions, thereby decreasing its isospin asymmetry and increasing the sound speed through the matter. (AU) | |
| Processo FAPESP: | 19/07767-1 - Reações nucleares com núcleos fracamente ligados ou com estrutura de cluster, radioativos e estáveis |
| Beneficiário: | Leandro Romero Gasques |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 23/09545-1 - Efeito da matéria escura na evolução de estrelas de neutron |
| Beneficiário: | Adamu Issifu |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 24/01623-6 - Transição Hádron-Quark no contexto de modelos efetivos relativísticos: o diagrama de fases da QCD e implicações astrofísicas. |
| Beneficiário: | Kau Dalfovo Marquez |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |