论文标题
韦克菲尔德从中微子驱动的积聚流中的韦克菲尔德加速围绕一个黑洞
Wakefield Acceleration in a Jet from a Neutrino Driven Accretion Flow around a Black Hole
论文作者
论文摘要
我们已经研究了来自中微子驱动的增生流（NDAF）在黑洞（BH）周围的射流中的电磁（EM）波脉冲。 NDAF是巨大的积聚磁盘，其积聚率的$ \ dot {m} \大约0.01-10 \ mathrm {m} _ \ odot/\ mathrm {s} $ for Stellar -Mass BHS。这样的极端积聚可能会产生准直的相对论流出，例如活跃银河核和微分射中的磁驱动的射流。当我们考虑滞留在射流上NDAF磁盘和磁冲动的内部区域的强弹性磁场时，我们发现它们导致伽马射线爆发以及高能宇宙射线的高能排放散发出来。当通过巨大的巨大吸积产生alfvénic波脉冲时，它会沿着射流中的大规模结构磁场传播。一旦AlfvénicAve脉冲在低音不足的情况下几乎以光速到达，它就会变成EM波脉冲，产生血浆后面的血浆。这些韦克菲尔德施加了集体加速力与颗粒运动的同步。结果，Wakefield加速前提是各种观察性特征，例如加速电子的高能伽马射线脉冲脉冲，加速质子的中微子脉冲以及最大能量超过$ 10^{20}〜{20}〜\ Mathrm {ev} $的质子。
We have investigated electro-magnetic (EM) wave pulses in a jet from a neutrino driven accretion flow (NDAF) around a black hole (BH). NDAFs are massive accretion disks whose accretion rates of $\dot{M}\approx 0.01 - 10 \mathrm{M}_\odot/\mathrm{s}$ for stellar-mass BHs. Such an extreme accretion may produce a collimated relativistic outflow like a magnetically driven jet in active galactic nuclei and micro-quasars. When we consider strong toroidal magnetic field stranded in the inner-region of a NDAF disk and magnetic impulses on the jet, we find that they lead to the emanation of high energy emissions for gamma-ray bursts as well as high energy cosmic rays. When Alfvénic wave pulses are generated by episodic immense accretions, it propagates along the large-scale structured magnetic field in the jet. Once the Alfvénic wave pulses reach at nearly the speed of light in the underdense condition, it turns into EM wave pulses which produce plasma wakes behind them. These wakefields exert a collective accelerating force synchronous to the motion of particles. As a result, the wakefield acceleration premises various observational signatures, such as pulsating bursts of high energy gamma-rays from accelerated electrons, pulses of neutrinos from accelerated protons, and protons with maximum energies beyond $10^{20}~\mathrm{eV}$.
