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arXiv 1812.09705astro-ph.IMastro-ph.EP
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太阳系科学的深钻领域

Deep Drilling Fields for Solar System Science

David E. Trilling, Michele Bannister, Cesar Fuentes, David Gerdes, Michael Mommert, Megan E. Schwamb, Chad Trujillo

摘要:

我们提出了一个黄道深钻场,将发现大约10,000个小而微弱的柯伊伯带天体(KBO)--原始的岩石/冰体,它们在我们的太阳系外部轨道上运行,独特地记录了行星系统形成和演化的过程。主要目标是测量KBO的大小和形状分布下降到25公里,这是一个大小,探测这一人口的早期和正在进行的演变。这些目标可以在总共约10小时的天空时间内实现(五个单独的场,每个场观察2.1小时)。在10年LSST主巡天期间,下游观测将提供颜色和轨道细化,总时间要求为40小时。

英文摘要:

We propose an ecliptic Deep Drilling Field that will discover some 10,000~small and faint Kuiper Belt Objects (KBOs) --- primitive rocky/icy bodies that orbit at the outside of our Solar System and uniquely record the processes of planetary system formation and evolution. The primary goals are to measure the KBO size and shape distributions down to 25~km, a size that probes both the early and ongoing evolution of this population. These goals can be met with around 10~hours total of on-sky time (five separate fields that are observed for 2.1~hours each). Additional science will result from downstream observations that provide colors and orbit refinement, for a total time request of 40~hours over the ten year LSST main survey.

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