论文标题
围绕带电的黑弦的弯曲轨道
Bound orbits around charged black strings
论文作者
论文摘要
我们研究了$ 5D $ reissner-nordstrom和非挥发性黑弦的大地测量学，并为大规模和无效测试粒子建立了理性的界限轨道分类法。对于及时的情况，具有高能量的测试颗粒（那会使它们跌入黑洞或散射黑洞）仍然可能在黑色弦周围形成绑定的轨道。我们计算相应的径向周期的累积角度，并表明它们高于其$ 4D $对应物。对于无效的情况，我们发现在其各自的视野外存在稳定的零轨道，除非在极端极限处，否则在四个维度中不存在。
We study the geodesics of $5d$ Reissner-Nordstrom and nonsingular black strings, and establish a rational bound orbit taxonomy for both massive as well as null test particles. For the timelike case, test particles with high energy (that would have made them plunge into or scatter off a black hole) could still form bound orbits around the black strings. We calculate the accumulated angles of the corresponding radial periods and show that they are higher than their $4d$ counterparts. For the null case, we found the existence of stable null orbits outside their respective horizons, which do not exist in the four dimensions except at their extremal limit.
