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arXiv 0811.0756gr-qcastro-phhep-phphysics.space-ph
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最近确定的土星近日点异常岁差

On the recently determined anomalous perihelion precession of Saturn

Lorenzo Iorio

摘要:

天文学家E. V. Pitjeva通过分析EPM 2008星历表进行了大量的行星观测,包括两年的观测。(2004-2006年)的正常点从卡西尼号航天器,现象学估计一个统计上显着的非零校正通常牛顿/爱因斯坦长期岁差的经度的近日点的土星,即Δ \dot \varpi_S = -0.006 +/- 0.002 arcsec/cy;形式统计误差为0.0007 arcsec/cy。它既不能用任何标准的经典和广义相对论动力学效应来解释,在EPM 2008星历表的力模型中,也不能用最近提出的几种奇异的引力修正来解释,这些修正是为了适应某些宇宙学/天体物理学观测,而不求助于暗能量/暗物质。其他天文学家团队的独立分析和对卡西尼号更大数据集的进一步处理将有助于澄清土星近日点异常岁差的性质和真实存在。

英文摘要:

The astronomer E.V. Pitjeva, by analyzing with the EPM2008 ephemerides a large number of planetary observations including also two years (2004-2006) of normal points from the Cassini spacecraft, phenomenologically estimated a statistically significant non-zero correction to the usual Newtonian/Einsteinian secular precession of the longitude of the perihelion of Saturn, i.e. Δ\dot\varpi_Sat = -0.006 +/- 0.002 arcsec/cy; the formal, statistical error is 0.0007 arcsec/cy. It can be explained neither by any of the standard classical and general relativistic dynamical effects mismodelled/unmodelled in the force models of the EPM2008 ephemerides nor by several exotic modifications of gravity recently put forth to accommodate certain cosmological/astrophysical observations without resorting to dark energy/dark matter. Both independent analyses by other teams of astronomers and further processing of larger data sets from Cassini will be helpful in clarifying the nature and the true existence of the anomalous precession of the perihelion of Saturn.

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