AI 中文总结
研究玻色子星正面碰撞，采用受鲍恩 - 约克初始数据启发的方法，测试单个带线性动量的玻色子星，展示了玻色子星间及与黑洞碰撞结果，证明该方法有效，且发现玻色子星碰撞与黑洞碰撞在引力波辐射能量上的差异。
AI 中文摘要
我们进行了一项数值相对论研究，涉及使用受鲍恩 - 约克初始数据启发的初始数据来模拟玻色子星的正面碰撞，该初始数据用于模拟带有穿孔的黑洞双星。初始数据方法保留了鲍恩 - 约克方法的简单性，能纳入来自早期后牛顿螺旋阶段的信息。我们在单个具有线性动量的玻色子星上测试了该方法，展示了玻色子星正面碰撞以及玻色子星与黑洞相遇的结果。总体而言，结果与先前研究一致，证明了初始数据方法的有效性。特别是，我们表明玻色子星正面碰撞在引力波中释放的能量比等效黑洞双星更多，而玻色子星与黑洞的正面碰撞辐射比黑洞双星对应情况少。
英文摘要
We present a numerical relativity study of head-on collisions involving boson stars using initial data inspired by the Bowen-York initial data used to model black hole binaries with punctures. The initial data method preserves the simplicity of the Bowen-York approach, thus allowing incorporating information from the early, post-Newtonian inspiral phase in binary coalescences. We test the method on a single boson star with linear momentum. We present results from head-on collisions of boson stars as well as encounters of boson stars with black holes. In general, the results are consistent with previous studies, demonstrating the effectiveness of the initial data method. In particular, we show that boson star head-on collisions emit more energy in gravitational waves than the equivalent black hole binaries. On the other hand, head-on collisions of a boson star with a black hole radiate less than their black hole binary counterparts.
Comments10 pages, 6 figures
