论文标题
通过微弱互动玻色子在星星中的辐射转移
Radiative transfer in stars by feebly interacting bosons
论文作者
论文摘要
从第一原则开始，我们研究了通过新的微弱相互作用的玻色子（FIB）的辐射转移，例如轴，轴突样颗粒（阿尔普斯），深色光子等。我们的主要简化是仅包括玻色子的发射或吸收（包括衰减），而不包括辐射场不同模式之间的散射。基于恒星中温度和FIB吸收率的给定分布，我们得出了玻色子光度的显式体积 - 综合表达式，从自由流到强捕捞极限到达。根据Stefan-Boltzmann Law，后者明确地认为后者与“ FIB球”的准热发射相对应。我们的结果取代了最近从超新星核心发射的FIB发射的文献中发现的表达式和近似值，对于辐射不稳定的FIB，我们为在水平支流恒星中最近讨论的非局部（“弹道”）传递提供了明确的表达式。
Starting from first principles, we study radiative transfer by new feebly-interacting bosons (FIBs) such as axions, axion-like particles (ALPs), dark photons, and others. Our key simplification is to include only boson emission or absorption (including decay), but not scattering between different modes of the radiation field. Based on a given distribution of temperature and FIB absorption rate in a star, we derive explicit volume-integral expressions for the boson luminosity, reaching from the free-streaming to the strong-trapping limit. The latter is seen explicitly to correspond to quasi-thermal emission from a "FIB sphere" according to the Stefan-Boltzmann law. Our results supersede expressions and approximations found in the recent literature on FIB emission from a supernova core and, for radiatively unstable FIBs, provide explicit expressions for the nonlocal ("ballistic") transfer of energy recently discussed in horizontal-branch stars.
