论文标题
将水和挥发物传递到陆地行星和月球
Delivery of water and volatiles to the terrestrial planets and the Moon
论文作者
论文摘要
从对行星影响下的行星磁盘的演变进行建模,已经表明,从木星轨道之外传递到地球的水质量可以与陆地海洋的质量相提并论。当它的质量小于当前的地球质量时,可以将大部分水的一部分被输送到地球的胚胎。虽然地球的胚胎质量正在生长到地球当前质量的一半,但输送到胚胎的水质量可能接近从木星和土星的饲养区传递到地球的总水量的30%。陆生海的水可能是从多种源的d/h比来源混合水的结果。如果将木星的轨道从木星的轨道范围内到达,那么如果对地球的单位质量归一化,则从木星轨道上传递到金星的质量几乎相同。向火星输送的类似的每块水与地球的水一样多了两倍。从木星的轨道上传递到月球的水质量可能小于地球的质量不超过20个。
From modeling the evolution of disks of planetesimals under the influence of planets, it has been shown that the mass of water delivered to the Earth from beyond Jupiter's orbit could be comparable to the mass of terrestrial oceans. A considerable portion of the water could have been delivered to the Earth's embryo, when its mass was smaller than the current mass of the Earth. While the Earth's embryo mass was growing to half the current mass of the Earth, the mass of water delivered to the embryo could be near 30% of the total amount of water delivered to the Earth from the feeding zone of Jupiter and Saturn. Water of the terrestrial oceans could be a result of mixing the water from several sources with higher and lower D/H ratios. The mass of water delivered to Venus from beyond Jupiter's orbit was almost the same as that for the Earth, if normalized to unit mass of the planet. The analogous per-unit mass of water delivered to Mars was two-three times as much as that for the Earth. The mass of water delivered to the Moon from beyond Jupiter's orbit could be less than that for the Earth by a factor not more than 20.