论文标题
对埃德丁顿超级质量黑洞淋上毛毛雨
Pair Drizzle around Sub-Eddington Supermassive Black Holes
论文作者
论文摘要
据信，伊德丁顿积聚速率附近的电子峰值对黑洞的创造被BREIT-theeler工艺（光子 - 光子碰撞）主导。当未筛选的电场在相干，宏观间隙或嵌入湍流等离子体流中嵌入的不一致的结构中加速瘦素时，产生相互作用的高能光子。后一种加速度会导致毛毛雨由来自背景辐射场的光子产出的对生产，其能量接近成对生产阈值。在这项工作中，我们使用辐射GRMHD模拟扩展了Moscibrodzka等人对Pair雨毛的早期研究。我们将重点放在超级质量Kerr黑洞上的低磁化物（SANE）上，并考虑由于同步加速器，Bremsstrahlung和Compton向外散射过程而引起的辐射。我们确认M87中的Papizzle足以使磁层电荷密度保持在Goldreich-Julian密度以上。我们还发现，对沿喷射盘边界的生产峰。
Electron-positron pair creation near sub-Eddington accretion rate black holes is believed to be dominated by the Breit-Wheeler process (photon-photon collisions). The interacting high energy photons are produced when unscreened electric fields accelerate leptons either in coherent, macroscopic gaps or in incoherent structures embedded in the turbulent plasma flow. The latter type of acceleration results in a drizzle of pair production sourced by photons from the background radiation field whose energies are near the pair-production threshold. In this work, we use radiation GRMHD simulations to extend an earlier study of pair drizzle by Moscibrodzka et al. We focus on low-magnetization (SANE) accretion onto supermassive Kerr black holes and consider radiation due to synchrotron, bremsstrahlung, and Compton upscattering processes. We confirm that pair drizzle in M87 is sufficient to keep the magnetospheric charge density orders of magnitude above the Goldreich-Julian density. We also find that pair production peaks along the jet-disk boundary.
