Proto-neutron stars with heavy baryons and universal relations

被引：61
作者：
Raduta, Adriana R. [1 ]
Oertel, Micaela [2 ]
Sedrakian, Armen [3 ,4 ]
机构：
[1] Natl Inst Phys & Nucl Engn IFIN HH, RO-077125 Bucharest, Romania
[2] Univ Paris, Univ PSL, CNRS, Observ Paris,LUTH, F-92195 Meudon, France
[3] Frankfurt Inst Adv Studies, D-60438 Frankfurt, Germany
[4] Univ Wroclaw, Inst Theoret Phys, PL-50204 Wroclaw, Poland
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2020年 / 499卷 / 01期
关键词：
dense matter; equation of state; stars: neutron; EQUATION-OF-STATE; MAXIMUM MASS; DIFFERENTIAL ROTATION; PROTONEUTRON STARS; DELTA ISOBARS; INERTIA; MOMENT; CONSTRAINTS; EVOLUTION; PHYSICS;
D O I：
10.1093/mnras/staa2491
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We use covariant density functional theory to obtain the equation of state (EoS) of matter in compact stars at non-zero temperature, including the full baryon octet as well as the Delta(1232) resonance states. Global properties of hot Delta-admixed hypernuclear stars are computed for fixed values of entropy per baryon (S/A) and lepton fraction (Y-L). Universal relations between the moment of inertia, quadrupole moment, tidal deformability, and compactness of compact stars are established for fixed values of S/A and Y-L that are analogous to those known for cold catalyzed compact stars. We also verify that the I-Love-Q relations hold at finite temperature for constant values of S/A and Y-L.
引用
收藏
页码：914 / 931
页数：18
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