论文标题
在爱因斯坦 - 马克斯韦 - 斯卡尔理论中的黑洞上的绝热积聚
Adiabatic accretion onto black holes in Einstein-Maxwell-scalar theory
论文作者
论文摘要
我们研究了爱因斯坦 - 马克斯韦 - 斯卡尔理论中的球形对称黑洞的绝热积聚过程，其中两个参数$α$和$β$在耦合项中。尤其是，我们以两种重要类的黑洞作为示例来证明跨音量点的范围和无量音坐标半径的范围。此外，我们发现两个耦合参数以无穷大时的声速不同顺序对质量积聚率进行了修改。我们还对积聚气体的温度比率表示了不同的影响。
We study the adiabatic accretion process of ordinary baryonic gas onto spherically symmetric black holes in Einstein-Maxwell-scalar theory, with two parameters $α$ and $β$ in the coupling term. Especially, we demonstrate the range of the transonic points in terms of the charge-to-mass ratio squared and the dimensionless coordinate radius, in two important classes of black holes as examples. Further, we find that the two coupling parameters give modifications to the mass accretion rate at different orders of the sound speed at infinity. We also present their different effects on the temperature ratios of the accreted gas.
