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arXiv 1204.0980astro-ph.EP
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月球起源的一种新的碎裂俘获理论

A New Disintegrative Capture Theory for the Origin of the Moon

Peter D. Noerdlinger

摘要:

导致月球形成的物体开始时与地球绕太阳的轨道相同,但在地球的L4。这颗原月球(PM)的质量比通常的巨型撞击(GI)物体“忒伊亚”小4倍,并被捕获到地球轨道。它有一个32%的铁-镍-硫核心支撑着一个发电机,这解释了磁化的月球岩石。在被捕获后,它被潮汐力撕裂,它的铁核和它的一些岩石地幔以一个非常平坦的角度贴在地球表面(产生了“晚期单板”)。潮汐剥离后,剩余的PM岩石被驱离地球约3.8倍的地球半径,形成了现在的月球。GI理论有几个问题:与地质学证据相反,猛烈的碰撞融化了整个地球。月球本身也必须从碰撞产生的蒸汽云中凝结出来,但有证据表明月球不是从蒸汽中凝结出来的。在新的理论中,我们所知道的月球可能只有38 - 39亿岁,而不是通常假设的4.56亿岁。这就是PM的时代。月球上的矿物可能和地球一样古老,但在捕获和暂时解体的过程中会重新排列。如果月球真的像所推测的那样年轻,它的起源将与地球上生命的开始相吻合,这在GI理论中是无法解释的。手稿问道:“月球是从里到外翻转的吗?”答案是:“基本上是的。"

英文摘要:

The object that resulted in the creation of the Moon started in the same orbital path as Earth around the Sun, but at Earth's L4. This proto-Moon (PM) was 4 times less massive than the usual Giant Impact (GI) object "Theia" and was captured into Earth orbit. It had a 32% Iron-Nickel-Sulfur core supporting a dynamo, which explains magnetized lunar rocks. Following capture, it was torn apart by tidal forces and its core of iron plastered itself, with some of its rock mantle, on the surface of Earth at a very flat angle (producing the "Late Veneer"). After tidal stripping, the remaining PM rock was driven away from Earth to about 3.8 times Earth's radius and formed into what is now the Moon. The GI theory has several troubles: The violent collision melts the entire Earth, contrary to geological evidence. The Moon itself also has to condense out of the vapor cloud generated in the collision, but there is evidence that the Moon was not condensed out of vapor. In the new theory, the Moon as we know it may be only 3.8 - 3.9 billion years old, not 4.56 as usually assumed. That is the age of the PM. The minerals in the Moon would be about as old as the Earth, but would have been re-arranged in the capture and temporary disintegration process. If the Moon is as young as suggested, its origin would coincide with the beginning of life on Earth, which is unexplained in the GI theory. The manuscript asks, "Was the Moon Turned Inside-Out" and the answer is "Essentially, Yes."

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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