论文标题
重力结合颗粒的恒星盆地
Stellar Basins of Gravitationally Bound Particles
论文作者
论文摘要
确定了一种新的物理现象：体积恒星发射到弱耦合颗粒（例如轴，模量，隐藏的光子和中微子）等重力结合的轨道上。虽然只有一小部分恒星的瞬时光度（绝大多数发射是相对论的模式），但将这些颗粒连续注入相位空间的一小部分中，它们会在天体物理上长时间缩放，从而形成了我所说的“恒星盆地”，与地质相似。太阳能盆地的能量密度将在仅一百万年后超过地球位置的相对论太阳通量，因为通过发射过程产生的任何足够长的粒子在低势头下均未抑制其矩阵元素。该观察结果对直接检测实验产生了直接且引人注目的后果 - 包括独立于暗物质假设的轴突参数空间的新限制 - 也可能会增加间接检测紧凑型恒星周围弱相互作用的颗粒的前景。
A new physical phenomenon is identified: volumetric stellar emission into gravitationally bound orbits of weakly coupled particles such as axions, moduli, hidden photons, and neutrinos. While only a tiny fraction of the instantaneous luminosity of a star (the vast majority of the emission is into relativistic modes), the continual injection of these particles into a small part of phase space causes them to accumulate over astrophysically long time scales, forming what I call a "stellar basin", in analogy with the geologic kind. The energy density of the Solar basin will surpass that of the relativistic Solar flux at Earth's location after only a million years, for any sufficiently long-lived particle produced through an emission process whose matrix elements are unsuppressed at low momentum. This observation has immediate and striking consequences for direct detection experiments---including new limits on axion parameter space independent of dark matter assumptions---and may also increase the prospects for indirect detection of weakly interacting particles around compact stars.
