论文标题
在二进制脉冲星系统中,由快速旋转的白色矮人引起的透明框架拖动拖动
Lense-Thirring frame dragging induced by a fast-rotating white dwarf in a binary pulsar system
论文作者
论文摘要
短期偏心二元轨道中的无线电脉冲星可用于研究重力动力学和二元进化。包含PSR J1141 $ - $ 6545的二进制系统包括一个庞大的白矮人(WD)伴侣,该伴侣在重力结合的年轻无线电脉冲星之前形成。我们观察到该脉冲星的轨道倾斜度的时间演变是由WD快速旋转而引起的牛顿四极矩矩和透明裂痕进动引起的。晶状体的进动,是相对论框架拖拉的效果,是对一般相对性的预测。该检测与WD从Pulsar祖细胞中产生的物质的进化情况一致,将WD旋转到$ <200美元的秒。
Radio pulsars in short-period eccentric binary orbits can be used to study both gravitational dynamics and binary evolution. The binary system containing PSR J1141$-$6545 includes a massive white dwarf (WD) companion that formed before the gravitationally bound young radio pulsar. We observe a temporal evolution of the orbital inclination of this pulsar that we infer is caused by a combination of a Newtonian quadrupole moment and Lense-Thirring precession of the orbit resulting from rapid rotation of the WD. Lense-Thirring precession, an effect of relativistic frame-dragging, is a prediction of general relativity. This detection is consistent with the evolutionary scenario in which the WD accreted matter from the pulsar progenitor, spinning up the WD to a period $< 200$ seconds.