论文标题

各向异性物质的双重多效率:牛顿案例

The double polytrope for anisotropic matter: Newtonian Case

论文作者

Abellan, G., Fuenmayor, E., Herrera, L.

论文摘要

几年前开发的一般形式主义将牛顿恒星与各向异性压力建模用于模型恒星,这是径向压力和切向压都满足状态的多面化方程的模型恒星。我们获得相应的车道 - 填充方程,并将其集成到参数的广泛值中,从而说明了压力各向异性对恒星对象的影响。我们为白矮人计算Chandrasekhar质量,并将其与以前的结果进行比较。最后,讨论了对某些天体物理场景的潜在应用。

A general formalism developed few years ago to model polytropic Newtonian stars with anisotropic pressure is applied to model stars for which, both, radial and tangential pressure satisfy polytropic equations of state. We obtain the corresponding Lane--Emden equation, and integrate it for a wide range of values of the parameters, thereby illustrating the effects of the pressure anisotropy on stellar objects. We calculate Chandrasekhar mass for a white dwarf and compare it with previous results. Finally, prospective applications to some astrophysical scenarios are discussed.

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