论文标题
通过撞车碰撞将水输送到干燥的原始星et
Water delivery to dry protoplanets by hit-and-run collisions
论文作者
论文摘要
新形成的陆地行星的最终水清单是由它们的碰撞历史所塑造的。挥发物从雪地线以外传输到可居住区的行星的环境表明，与水丰富的物体非常干燥。通过平滑的颗粒流体动力学（SPH）模拟，我们研究了在干燥目标被水丰富的弹丸击中的场景中，重点是带有两个大型幸存物体的撞击，这可能构成了所有类似大小的碰撞的一半。
Final water inventories of newly formed terrestrial planets are shaped by their collision history. A setting where volatiles are transported from beyond the snowline to habitable-zone planets suggests collisions of very dry with water-rich bodies. By means of smooth particle hydrodynamics (SPH) simulations we study water delivery in scenarios where a dry target is hit by a water-rich projectile, focusing on hit-and-run encounters with two large surviving bodies, which probably comprise about half of all similar-sized collisions.
