标题： 绝热旋进在克尔时空电磁辐射反应下的研究 显示英文标题

标题： Adiabatic inspirals under electromagnetic radiation reaction on Kerr spacetime

摘要： 一个围绕黑洞运行的紧凑天体通过辐射反应过程损失轨道能量和角动量，逐渐向黑洞下落，直到最终坠入黑洞。 这里我们考虑一种带电紧凑天体的情况，其中电磁辐射的通量驱动这种下落。 我们在$(p,e)$平面内计算了在旋转黑洞赤道平面内的渐近轨道轨迹，在绝热（轨道平均耗散）近似下进行计算。 我们与基于 Abraham-Lorentz 力定律的非相对论开普勒近似以及标准的引力波驱动情景进行了比较。 我们发现，电磁驱动的下落不如引力对应的下落有效地圆化（即在坠入时轨道仍保持更高的偏心率），并且我们量化了黑洞自转的影响。 显示英文摘要

摘要： A compact body in orbit about a black hole loses orbital energy and angular momentum through radiation-reaction processes, inspiralling towards the black hole until a final plunge. Here we consider a scenario with a charged compact body in which fluxes of electromagnetic radiation drive this inspiral. We calculate trajectories in the $(p,e)$ plane for inspirals in the equatorial plane of a rotating black hole within the adiabatic (orbital-averaged-dissipative) approximation. We make comparisons with a non-relativistic Keplerian approximation based on the Abraham-Lorentz force law, and with standard gravitational-wave driven scenarios. We find that EM-driven inspirals are less efficiently circularized (i.e. orbits remain more eccentric at the point of plunge) than their gravitational counterparts, and we quantify the effect of black hole spin.