标题： 各向异性暗能量星的非径向振荡 显示英文标题

标题： Non-radial oscillations in anisotropic dark energy stars

摘要： 我们通过使用修正的卡普里金处方来研究同向和异向暗能量星的非径向 $f$- 模式振荡，以模拟恒星物质。 系统中的各向异性压力通过 Bowers-Liang 处方建模。 通过求解存在各向异性的恒星结构方程，我们研究了暗能量星的整体属性，并将质量-半径轮廓与引力波事件和毫秒脉冲星的数据进行了比较。 我们继续通过采用 Cowling 近似法来确定异向暗能量星的突出非径向 $l=2$ $f$- 模式频率，并通过改变各向异性参数分析和量化光谱。 我们报告说，暗能量星的 $f$- 模式光谱行为与中子星和夸克星明显不同，这可能有助于其未来的识别。 此外，还分析了异向暗能量星的潮汐变形因子。 显示英文摘要

摘要： We study the non-radial $f$-mode oscillations of both isotropic and anisotropic dark energy stars by using the modified Chaplygin prescription of dark energy to model the stellar matter. The anisotropic pressure in the system is modeled with Bowers-Liang prescription. By solving the stellar structure equations in presence of anisotropy, we study the global properties of the dark energy star and compare the mass-radius profiles with data from GW events and milli-second pulsars. We proceed to determine the prominent non-radial $l=2$ $f$-mode frequencies of the anisotropic dark energy star by employing the Cowling approximation and analyse and quantify the spectra by varying the anisotropic parameter. We report that $f$-mode spectra of dark energy star have distinctly different behaviour compared to neutron star and quark star, and this may possibly help in its future identification. Further, the tidal deformability factors of the anisotropic dark energy stars have also been analyzed.