This work analyses the hydrostatic equilibrium configurations of strange stars in a non-minimal geometry-matter coupling (GMC) theory of gravity. Those stars are made of strange quark matter, whose distribution is governed by the MIT equation of state. The non-minimal GMC theory is described by the following gravitational action: $f(R,L)=R/2+L+σRL$, where $R$ represents the curvature scalar, $L$ is the matter Lagrangian density, and $σ$ is the coupling parameter. When considering this theory, the strange stars become larger and more massive. In particular, when $σ=50$ km$^2$, the theory can achieve the 2.6 $M_\odot$, which is suitable for describing the pulsars PSR J2215+5135 and PSR J1614-2230, and the mass of the secondary object in the GW190814 event. The 2.6 $M_\odot$ is a value hardly achievable in General Relativity even considering fast rotation effects, and is also compatible with the mass of PSR J0952-0607 ($M = 2.35 \pm 0.17 ~M_\odot$), the heaviest and fastest pulsar in the disk of the Milky Way, recently measured, supporting the possible existence of strange quark matter in its composition. The non-minimal GMC theory can also give feasible results to describe the macroscopical features of strange star candidates.
Observable Signatures of a Quarkyonic Phase in Neutron Stars
National Institute of Technology, Rourkela（鲁尔基拉国家理工学院）；University of Coimbra（科英布拉大学）；Institute for Nuclear Theory, University of Washington（华盛顿大学核理论研究所）；Network for Neutrinos, Nuclear Astrophysics, and Symmetries (N3AS), University of California, Berkeley（加州大学伯克利分校中微子、核天体物理与对称性网络（N3AS））；Stony Brook University（石溪大学）
Radial oscillations in neutron stars from unified hadronic and quarkyonic equation of states
利用支持2 M $_\odot$星判据的统一状态方程（EoS）研究了非旋转中子星的径向振荡.我们求解Sturm-Liouville问题，计算了中子星的20个最低径向振动模及其本征函数，这些振动模是由Skyrme-Hartree-Fock、相对论平均场和夸克模型中的8个统一Eos模型所模拟的.我们比较的行为计算的本征频率NS模型与强子的夸克EOS，而不同的中心密度。最低阶，f-模式频率之间的两个类的EoS在1.4 M $_\odot$，但消失在各自的最大质量，与稳定性标准$\partial M/\partialρ_c > 0$一致。此外，我们还计算了大的频率分离，并发现高阶模式的频率显着降低，将地壳中的EoS。
Probing geometrically perturbed strange stars with minimal decoupling using millisecond pulsar timing observations
University of Delhi（德里大学）；University of Nizwa（尼兹瓦大学）；University of KwaZulu-Natal（夸祖鲁-纳塔尔大学）；Khazar University（哈扎尔大学）；L.N. Gumilyov Eurasian National University（L.N. 古米廖夫欧亚国立大学）；National University of Uzbekistan（乌兹别克斯坦国立大学）；University of Tashkent for Applied Sciences（塔什干应用科学大学）；Urgench State University（乌尔根奇国立大学）；Mamun University（马蒙大学）
