论文标题
球形磁化奇怪星星的观察物
Observables of spheroidal magnetized Strange Stars
论文作者
论文摘要
我们研究了球形坐标中使用轴向对称度量的磁化奇怪恒星的稳定球体构型，该指标使用伽马参数将由于磁场和恒星变形而导致状态方程的各向异性链接。恒星由MIT-BAG模型框架中描述的磁化奇怪的夸克物组成。计算它们的质量，半径，偏心率，红移和质量四极力矩。将结果与用TOV方程和奇异恒星候选物的观察数据获得的球形奇怪恒星溶液进行比较。在球体模型中，可观察物直接取决于恒星的变形，即使它很小，可观察物也与相应的球形构型差异很大。因此，质量四极矩的最高值对应于中间质量状态。与观测值相比，这些差异可能允许区分具有/没有磁场的模型。
We study stable spheroidal configurations of magnetized Strange Stars using an axially symmetric metric in spherical coordinates that uses a gamma parameter to link the anisotropy in the Equation of State due to the magnetic field with the deformation of the star. The stars are composed by magnetized Strange Quark Matter described within the framework of the MIT-Bag model. Their masses, radii, eccentricity, redshift and mass quadrupole moment are computed. Results are compared with spherical Strange Stars solutions obtained with TOV equations and observational data of Strange Stars candidates. In the spheroidal model the observables depend directly on the deformation of the stars, and even though it is small, the observables strongly deviate from the corresponding spherical configurations. Thus, the highest values of the mass quadrupole moment correspond to the intermediate mass regime. These differences might allow to discriminate between models with/without magnetic field when compared with observations.
