A Density-dependent van der Waals Model under the GW170817 Constraint
文献类型：期刊论文
| 作者 | Lourenco, O.; Dutra, M.; Lenzi, C. H.; Bhuyan, M.; Biswal, S. K.; Santos, B. M. |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2019 |
| 卷号 | 882期号:1页码:67 |
| 关键词 | EQUATION-OF-STATE NUCLEAR SYMMETRY ENERGY NEUTRON MATTER PHYSICS MASSES |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ab3122 |
| 英文摘要 | We propose a density-dependent function for the attractive interaction in the original van der Waals model to correctly describe the flow constraint at the high-density regime of the symmetric nuclear matter. After a generalization to asymmetric nuclear matter, it was also possible to study the stellar matter regime from this new model. The mass-radius relation for neutron stars under beta-equilibrium is found to agree with recent X-ray observations. The neutron-star masses supported against gravity, obtained from some parameterizations of the model, are in the range of (1.97-2.07)M-circle dot, compatible with observational data from the PSR J0348+0432 pulsar. Furthermore, we verify the reliability of the model in predicting tidal deformabilities of the binary system related to the GW170817 neutron-star merger event and find a full agreement with the new bounds obtained by the LIGO/Virgo collaboration. |
| 学科主题 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/26930]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.Bhuyan, M.] DCTA, Dept Fis, Inst Tecnol Aeronaut, BR-12228900 Sao Jose Dos Campos, SP, Brazil 2.Lenzi, C. H. 3.Dutra, M. 4.[Lourenco, O. 5.[Santos, B. M.] Univ Fed Acre, BR-69920900 Rio Branco, AC, Brazil 6.[Biswal, S. K.] Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China 7.[Bhuyan, M.] Duy Tan Univ, Inst Res Dev, Da Nang 550000, Vietnam 8.[Bhuyan, M.] Univ Malaya, Fac Sci, Dept Phys, Kuala Lumpur 50603, Malaysia |
| 推荐引用方式 GB/T 7714 | Lourenco, O.,Dutra, M.,Lenzi, C. H.,et al. A Density-dependent van der Waals Model under the GW170817 Constraint[J]. ASTROPHYSICAL JOURNAL,2019,882(1):67. |
| APA | Lourenco, O.,Dutra, M.,Lenzi, C. H.,Bhuyan, M.,Biswal, S. K.,&Santos, B. M..(2019).A Density-dependent van der Waals Model under the GW170817 Constraint.ASTROPHYSICAL JOURNAL,882(1),67. |
| MLA | Lourenco, O.,et al."A Density-dependent van der Waals Model under the GW170817 Constraint".ASTROPHYSICAL JOURNAL 882.1(2019):67. |
入库方式： OAI收割
来源：理论物理研究所
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