标题： 超爱丁顿吸积流围绕不同质量类别的黑洞的辐射和外流特性：依赖于吸积率 显示英文标题

标题： Radiation and outflow properties of super-Eddington accretion flows around various mass classes of black holes: Dependence on the accretion rates

摘要： 我们对黑洞周围的超爱丁顿吸积流和外流进行轴对称二维辐射流体动力学模拟，以研究辐射和外流的特性作为黑洞质量和黑洞吸积率（$\dot M_{\rm BH}$）的函数。 我们发现，对于恒星级黑洞，$\dot{m}_{\rm BH} (\equiv \dot{M}_{\rm BH}c^2 /L_{\rm Edd})$与$L_{\rm rad}/L_{\rm Edd}$和$L_{\rm mech}/L_{\rm Edd}$的依赖关系可以适用于高质量情况，其中$L_{\rm rad}$是辐射光度，$L_{\rm mech}$是机械光度，$c$是光速，$L_{\rm Edd}$是爱丁顿光度。 这种普遍性可以在电子散射不透明度超过吸收不透明度的区域中出现。 此外，归一化的各向同性机械光度 $L_{\rm mech}^{\rm ISO}/L_{\rm Edd}$ (由 $\theta=10^\circ$处的归一化密度和速度评估) 与 ${\dot m}_{\rm BH}$呈现断裂幂律关系；在 ${\dot m}_{\rm BH}\sim 400$以下(以上) $L_{\rm mech}^{\rm ISO}/ L_{\rm Edd} \propto{\dot m}_{\rm BH}^{2.7}$(或 $\propto {\dot m}_{\rm BH}^{0.7}$)。 这是因为径向速度在断裂点以下(以上)随着 $\dot m_{\rm BH}$的增加而几乎保持不变(甚至减少)。 我们也发现光度比在${\dot m}_{\rm BH} \sim 100$时为$L_{\rm mech}/L_{\rm rad}^{\rm ISO} \sim$0.05，这与NLS1和1H 0323+103的观测结果大致一致。 显示英文摘要

摘要： We perform axisymmetric two-dimensional radiation-hydrodynamic simulations of super-Eddington accretion flow and outflow around black holes to examine the properties of radiation and outflow as functions of the black hole mass and the accretion rate onto the black hole ($\dot M_{\rm BH}$). We find that the $\dot{m}_{\rm BH} (\equiv \dot{M}_{\rm BH}c^2 /L_{\rm Edd})$ dependence of $L_{\rm rad}/L_{\rm Edd}$ and $L_{\rm mech}/L_{\rm Edd}$ found for stellar-mass black hole can apply to the high mass cases, where $L_{\rm rad}$ is the radiation luminosity, $L_{\rm mech}$ is the mechanical luminosity, $c$ is the speed of light, and $L_{\rm Edd}$ is the Eddington luminosity. Such universalities can appear in the regime, in which electron scattering opacity dominates over absorption opacity. Further, the normalized isotropic mechanical luminosity $L_{\rm mech}^{\rm ISO}/L_{\rm Edd}$ (evaluated by normalized density and velocity at $\theta=10^\circ$) exhibits a broken power-law relationship with ${\dot m}_{\rm BH}$; $L_{\rm mech}^{\rm ISO}/ L_{\rm Edd} \propto{\dot m}_{\rm BH}^{2.7}$ (or $\propto {\dot m}_{\rm BH}^{0.7}$) below (above) ${\dot m}_{\rm BH}\sim 400$. This is because the radial velocity stays nearly constant (or even decreases) below (above) the break with increase of $\dot m_{\rm BH}$. We also find that the luminosity ratio is $L_{\rm mech}/L_{\rm rad}^{\rm ISO} \sim$ 0.05 at ${\dot m}_{\rm BH} \sim 100$, which is roughly consistent with the observations of NLS1, 1H 0323+103.