论文标题
带有黑洞，中子恒星，Gravastar或Boson Star成分的灵感紧凑型二进制文件中自旋演化固定点的稳定性分析
Stability analysis of the spin evolution fix points in inspiraling compact binaries with black hole, neutron star, gravastar, or boson star components
论文作者
论文摘要
基于黑洞，中子恒星，静电杆或玻色子恒星的世俗自旋进化，在偏心轨道上的紧凑型二进制中，我们确定了旋转和轨道角动量的比对且更通用的共蓝构构型作为固定点。通过动态系统分析，我们研究了它们的线性稳定性作为质量四极参数的函数。边缘稳定性适用于二进制构型，两种旋转都具有抗轨道角动量的旋转，对于两种旋转都与轨道角动量排列（除了某些四极恒星和玻色子恒星的某些四极性参数范围外），以及最大质量比。对于相等的质量，其中一种旋转的构型对齐和另一个抗静脉的构型对于GRAVASTAR二进制型，对于高四极性参数范围的中子星二进制物以及玻色子恒星二进制组。对于某些不等的质量抗血剂二进制物，黑洞二进制二进制或中子星二进制二进制，从稳定性到不稳定性的过渡会在灵感中发生，当一个旋转对齐时，而另一个旋转对轨道角动量进行对齐。我们在某些GARVASTAR，中子星或玻色子星的灵感中发现了过渡性不稳定状态，并带有相反的旋转。对于共面构型，我们仅发现仅针对GARVASTAR的不稳定性 - GARVASTAR，BOSON Star -Boson Star和Black Hole -Boson Star Binaries。对于给定的自旋配置，边际稳定性在很大程度上取决于四极参数的值。中子恒星二进制区的稳定性区域比黑洞二进制组更大，而混合系统的稳定性参数区域有限。
Based on the secular spin evolution of black holes, neutron stars, gravastars, or boson stars in precessing compact binaries on eccentric orbit, we identify the aligned and more generic coplanar configurations of the spins and orbital angular momentum as fix points. Through a dynamical system analysis, we investigate their linear stability as function of the mass quadrupole parameter. Marginal stability holds for the binary configurations with both spins antialigned to the orbital angular momentum, for both spins aligned to the orbital angular momentum (with the exception of certain quadrupolar parameter ranges of neutron stars and boson stars), and for the extremal mass ratio. For equal masses, the configurations of one of the spins aligned and the other antialigned is stable for gravastar binaries, for neutron star binaries in the high quadrupolar parameter range, and for boson star binaries. For some unequal mass gravastar binaries, black hole binaries or neutron star binaries, a transition from stability to instability can occur during the inspiral, when one of the spins is aligned, while the other is antialigned to the orbital angular momentum. We discover a transitional instability regime during the inspiral of certain gravastar, neutron star, or boson star binaries with opposing spins. For coplanar configurations we find instabilities only for the gravastar - gravastar, boson star - boson star and black hole - boson star binaries. For a given spin configuration, marginal stability strongly depends on the value of the quadrupolar parameters. The stability region is larger for neutron star binaries than for black hole binaries, while the mixed systems have a restricted stability parameter region.
