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.

我们研究了由碰撞产生的电磁和标量辐射的爆发，以及使用耦合轴距规场系统的3 + 1维晶格模拟，合并了由轴突状颗粒制成的振荡子。在合并之前，抑制了进入光子的辐射。但是，如果满足共振条件，它将成为合并后能量损失的主要来源。相反，标量波的辐射在初始合并阶段占主导地位，但在合并之后被抑制。标量和电磁辐射的后反应包括在我们的模拟中。我们对系统进行了足够长的演化，以至于看到共振光子产生会提取出很大一部分的初始轴突能量，并再次脱离共振条件。我们提供对时间的参数理解，