论文标题
来自轴心样轨道的旋柱合并的电磁爆发
Electromagnetic Bursts from Mergers of Oscillons in Axion-like Fields
论文作者
论文摘要
我们使用3+1个尺寸晶状体模拟的耦合轴轴测磁场系统的3+尺寸晶格模拟来研究由碰撞产生的电磁和标量辐射的爆发。在合并之前，将辐射抑制光子。但是，如果满足共振条件，则将成为合并后能源损失的主要来源。相反，标量波中的辐射在初始合并阶段占主导地位，但在合并后被抑制。标量和电磁辐射的反射包括在我们的模拟中。我们将系统发展足够长，以确保共振光子的产生提取了初始轴心能的很大一部分，并且再次脱离了共振条件。我们提供了对时间的参数理解，以及该过程中涉及的能量尺度，并讨论了检测电磁信号的观察前景。
We investigate the bursts of electromagnetic and scalar radiation resulting from the collision, and merger of oscillons made from axion-like particles using 3+1 dimensional lattice simulations of the coupled axion-gauge field system. The radiation into photons is suppressed before the merger. However, it becomes the dominant source of energy loss after the merger if a resonance condition is satisfied. Conversely, the radiation in scalar waves is dominant during initial merger phase but suppressed after the merger. The backreaction of scalar and electromagnetic radiation is included in our simulations. We evolve the system long enough to see that the resonant photon production extracts a significant fraction of the initial axion energy, and again falls out of the resonance condition. We provide a parametric understanding of the time, and energy scales involved in the process and discuss observational prospects of detecting the electromagnetic signal.
