| 引力无需时间传播——“由固体潮发现引力以光速传播的观测证据”不成立 |
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| 引用本文： | 刘序俨,王紫燕.引力无需时间传播——“由固体潮发现引力以光速传播的观测证据”不成立[J].大地测量与地球动力学,2019,39(7):677-680. |
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| 作者姓名： | 刘序俨 王紫燕 |
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| 作者单位： | 福建省地震局,福州市华鸿路7号,350003;福建省地震局,福州市华鸿路7号,350003 |
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| 摘 要： | 重力固体潮调和分析结果无法证明引力以光速传播。首先，根据固体潮理论，进行调和分析时固体潮理论值和观测值的时间序列是同步的，不存在时差；其次，天体起潮力仅与万有引力有关，与光速无关；第三，调和分析得到的潮汐因子仅反映地球介质的物性变化，相位滞后则反映地球介质的粘滞弹性，两者与天体引力及光到达观测点的时差无关；第四，汤克云和骆鸣津在论证过程中作了过多的人为改正，有些改正使用不当；第五，万有引力与引力波是两个不同的概念，万有引力是相互作用的两个物体之间的一种空间性质，它与两个彼此相互作用的物体同在，无需时间传播，而引力波是一种时空涟漪，需要在特定条件下产生，通过波的形式从辐射源以光速向外传播，并以引力辐射的形式传输能量，两者不可混淆。汤克云与骆鸣津认为，重力固体潮理论值隐含两个假设：1）引力以光速传播；2）引力及光的时差等于重力固体潮调和分析结果的时差。这两个假设并不成立，汤克云与骆鸣津关于引力是以光速传播的论证是一个误会，引力不需要时间传播。
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| 关 键 词： | 引力 重力固体潮 调和分析 相位滞后 时差 引力波 |
Propagation of Gravity without Time: Observational Evidences of Failure for the Speed of Gravity Based on the Earth Tide |
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| LIU Xuyan,WANG Ziyan.Propagation of Gravity without Time: Observational Evidences of Failure for the Speed of Gravity Based on the Earth Tide[J].Journal of Geodesy and Geodynamics,2019,39(7):677-680. |
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| Authors: | LIU Xuyan WANG Ziyan |
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| Abstract: | In this paper, we show that harmonic analysis results of solid tide observations cannot confirm that gravitational interaction speed is the same as the speed of light. First, from the aspects of the theory of gravity tide, the solid tide theory value and the observed value are synchronized. There is no time lag in harmonic analysis. Second, celestial tidal force is only related to gravitation and has nothing to do with the speed of light. Third, tidal factors only reflect the physical changes in the earth’s medium and the phase difference reflects the elasticity and viscosity of the viscoelastic medium; they have nothing to do with the time lag between universal gravitation and light. Fourth, during the concrete process of analysis, there are too many artificial astronomical operations of corrections, and some corrections may be used improperly in two papers of professor Tang and professor Luo. Fifth, gravity and gravitational waves are two different concepts. Gravity is a spatial property in the interaction of two objects, it is an attribute of the two interacting objects, which does not propagate; Gravity waves are space-time ripples, under specified conditions, which radiation of waves from an oscillating source at the speed of light, and energy loss via radiation of gravitational waves. It is pointed out that the theory of earth tide implies two hypotheses: the speed of gravity is the same as the speed of light, and the time lag between universal gravitation and light is the same as the phase difference of harmonic analysis results, as in two papers of professor Tang and professor Luo. The two hypotheses are incorrect, and the conclusion that gravitation is transmitted at the speed of light cannot be established.Gravity doesn’t take time to propagate. |
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| Keywords: | gravity gravitational tide harmonic analysis phase lay time lag gravitational wave |
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