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arXiv 0905.4704gr-qcastro-ph.COastro-ph.EPastro-ph.GAhep-phphysics.space-ph
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修正引力的长程模型及其与太阳系和双脉冲星数据的一致性

Long-Range Models of Modified Gravity and Their Agreement with Solar System and Double Pulsar Data

Lorenzo Iorio

摘要:

牛顿/爱因斯坦标准引力定律的许多长期修正在最近的过去被提出来解释从太阳系到整个宇宙的不同尺度上发生的各种天体现象。最著名的是所谓的先锋异常,{即}先驱者10/11号航天器在太阳系中超过20天文单位的阈值后,在遥测中检测到一个仍然无法解释的加速度,几个星系的速度旋转曲线的非开普勒轮廓和宇宙加速度。我们使用太阳系和双脉冲星系统中行星运动的最新观测结果,对这些模型进行约束,这些模型与它们最初提出的现象无关。我们还处理最近检测到的异常近日点岁差的土星,并讨论了它可以解释的可能性,一些上述模型的修改重力。

英文摘要:

Many long-range modifications of the Newtonian/Einsteinian standard laws of gravity have been proposed in the recent past to explain various celestial phenomena occurring at different scales ranging from solar system to the entire universe. The most famous ones are the so-called Pioneer anomaly, {i.e.} a still unexplained acceleration detected in the telemetry of the Pioneer 10/11 spacecraft after they passed the 20 AU threshold in the solar system, the non-Keplerian profiles of the velocity rotation curves of several galaxies and the cosmic acceleration. We use the latest observational determinations of the planetary motions in the solar system and in the double pulsar system to put constraints on such models independently of the phenomena for which they were originally proposed. We also deal with the recently detected anomalous perihelion precession of Saturn and discuss the possibility that it can be explained by some of the aforementioned models of modified gravity.

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