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arXiv 1805.06804gr-qcastro-ph.CO
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GW170817是否伪造MOND?

Does GW170817 falsify MOND?

R. H. Sanders

摘要:

引力波事件GW 170817和几乎同时发生的对应的伽马射线暴(GRB 170817 A)证伪了修正的引力理论,其中引力几何与物理几何不一致。因此,这一事件的观测结果明确排除了一些理论,如TeVeS,这是Milgrom修正的牛顿动力学(MOND)的相对论扩展,预测电磁辐射和引力辐射的夏皮罗延迟显著不同。虽然没有证伪MOND本身,但GW 170817严格限制了MOND的相对论扩展,使其不依赖于额外的物质耦合场,而是依赖于一个通用引力和物理度量的修正场方程。这里我举一个简单的偏好框架理论作为例子。

英文摘要:

The gravitational-wave event GW170817 and the near-simultaneous corresponding gamma-ray burst (GRB 170817 A) falsify modified gravity theories in which the gravitational geometry differs non-conformally from physical geometry. Thus, the observations of this event definitively rule out theories, such as TeVeS, a suggested relativistic extension of Milgrom's modified Newtonian dynamics (MOND), that predict a significantly different Shapiro delay for electromagnetic and gravitational radiation. While not falsifying MOND per se, GW170817 severely constrains relativistic extensions of MOND to theories that do not rely on additional matter-coupling fields but rather upon modified field equations for one universal gravitational and physical metric. Here I mention a simple preferred-frame theory as an example.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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