Pan-STARRS1巡天发现的太阳系遥远天体
Distant Solar System Objects identified in the Pan-STARRS1 survey
摘要:
我们提出了一种方法来识别遥远的太阳系物体在长期的宽视场小行星调查数据,并进行搜索,他们在泛星1(PS1)从2010年到2015年中期获得的图像数据。我们证明,我们的方法是能够找到多个反对派的轨道链接,我们提出了由此产生的轨道分布,其中包括154半人马座,255个经典的海王星外天体(TNOs),121个共振TNOs,89个散射盘对象(SDO)和10颗彗星。我们的结果显示,其中一半以上是新发现,包括新发现的19等TNO。我们发现的天体在近日点的参数中没有显示出聚集,如果存在的话,可能支持在外太阳系存在一个未知的行星大小的大型天体。
英文摘要:
We present a method to identify distant solar system objects in long-term wide-field asteroid survey data, and conduct a search for them in the Pan-STARRS1 (PS1) image data acquired from 2010 to mid-2015. We demonstrate that our method is able to find multi-opposition orbital links, and we present the resulting orbital distributions which consist of 154 Centaurs, 255 classical Trans-Neptunian Objects (TNOs), 121 resonant TNOs, 89 Scattered Disc Objects (SDOs) and 10 comets. Our results show more than half of these are new discoveries, including a newly discovered 19th magnitude TNO. Our identified objects do not show clustering in their argument of perihelia, which if present, might support the existence of a large unknown planetary-sized object in the outer solar system.
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