论文标题
磁中微子冷却的圆环的积聚
Accretion of the magnetized neutrino-cooled torus
论文作者
论文摘要
由紧凑的二进制合并产生的黑洞中中微子冷却的积聚流是喷气式形成和磁性风的有希望的场景，可以解释基于GW170817引力波观测的短持续时间伽马射线爆发（GRBS）中央发动机和Kilonovae。磁化不稳定性（MRI）湍流和Blandford-Znajek（BZ）机制有望在磁盘的热平衡（平衡中微子冷却）以及驱动积聚和创建喷气机中起关键作用。使用开源GRMHD危害码，我们研究了在固定弯曲的时空背景中具有现实状态方程的吸积磁盘的磁性演变。我们确定中微子冷却和磁场的影响，特别注意磁盘和流出的动力学，热和组成演化。
Neutrino-cooled accretion flow around a black hole, produced by a compact binary merger, is a promising scenario for jet formation and magnetic-driven winds to explain short duration gamma ray bursts (GRBs) central engine and kilonovae based on GW170817 gravitational wave observation. Magnetorotational instability (MRI) turbulence and Blandford-Znajek (BZ) mechanism are expected to play key roles in the thermal equilibrium of the disk (balancing neutrino cooling) and in driving accretion and creating jets. Using the open-source GRMHD HARM-COOL code, we study the magnetically-driven evolution of an accretion disk with realistic equation of state in the fixed curved space-time background. We identify the effects of the neutrino cooling and the magnetic field, paying particular attention to the dynamical, thermal and composition evolution of the disk and outflows.
