飞越异常现象能用惯性修正来解释吗?
Can the flyby anomalies be explained by a modification of inertia?
摘要:
飞越异常是在伽利略号、近地天体、卡西尼号和罗塞塔号航天器飞越地球期间,在最接近地球时观察到的无法解释的速度增加3.9、13.5、0.1和1.8毫米/秒。在这里,这些飞越是使用一种理论建模的,该理论假设惯性是由一种形式的Unruh辐射引起的,并由哈勃尺度的Casimir效应进行了修改。该理论预测,当飞船相对于银河系中心的加速度接近于零时,它们的惯性质量会减少约10^-7 s,从而导致向地球方向的跳跃分别为2.6、1.2、1.4和1.9 mm/s,并且为了保持角动量,轨道速度会增加几mm/s,除了NEAR外,这与观测结果非常接近。然而,这些结果对所使用的哈勃常数非常敏感。作为对这些想法的实验测试,有人提出,超材料可以用来弯曲物体周围的Unruh辐射,可能会减少它们的惯性质量。
英文摘要:
The flyby anomalies are unexplained velocity increases of 3.9, 13.5, 0.1 and 1.8 mm/s observed near closest approach during the Earth flybys of the Galileo, NEAR, Cassini and Rosetta spacecraft. Here, these flybys are modelled using a theory that assumes that inertia is caused by a form of Unruh radiation, modified by a Hubble-scale Casimir effect. This theory predicts that when the craft's accelerations relative to the galactic centre approached zero near closest approach, their inertial masses reduced for about 10^-7 s causing Earthward jumps of 2.6, 1.2, 1.4 and 1.9 mm/s respectively, and, to conserve angular momentum, increases in orbital velocity of a few mm/s that, except NEAR's, were quite close to those observed. However, these results were extremely sensitive to the Hubble constant used. As an experimental test of these ideas, it is proposed that metamaterials could be used to bend Unruh radiation around objects, possibly reducing their inertial mass.
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