OSSOS. VI. Striking Biases in the Detection of Large Semimajor Axis Trans-Neptunian Objects
OSSOS. VI. Striking Biases in the Detection of Large Semimajor Axis Trans-Neptunian Objects
复制标题
奥索斯。
DOI：
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
K. Volk
中科院分区：
文献类型：
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作者：
C. Shankman;J. Kavelaars;M. Bannister;B. Gladman;S. Lawler;Ying;M. Jakubik;N. Kaib;M. Alexandersen;S. Gwyn;J. Petit;K. Volk
积累，但规模较小的一套大型半长轴trans-Neptunian对象（TNOs）显示了一个明显的集群在其轨道的方向。这种聚类必须要么代表这些TNO的内在分布，要么是由于观测偏差和/或对这样一小组检测到的物体的统计预期变化而产生的。在不同和独立的调查中检测到了集群的TNO，这导致声称检测因此没有观测偏差。这种明显的集群导致了所谓的“行星9”假设，即超级地球目前居住在遥远的太阳系中，并导致了这种集群。外太阳系起源调查（OSSOS）是一个大型项目，于2013年至2017年在加拿大-法国-夏威夷望远镜上运行，发现了800多个新的TNO。OSSOS的主要设计目标之一是仔细确定在检测到的样本中会出现的观察偏差。我们展示了惊人的和非直观的偏见，存在的检测TNO与大semimargue轴。八个大的半长轴OSSOS检测是一个独立的数据集，规模相当的砾岩样品在以前的研究中使用。我们的结论是，OSSOS样本的轨道分布是一致的，从一个均匀的底层角分布检测。
The accumulating but small set of large semimajor axis trans-Neptunian objects (TNOs) shows an apparent clustering in the orientations of their orbits. This clustering must either be representative of the intrinsic distribution of these TNOs, or else have arisen as a result of observation biases and/or statistically expected variations for such a small set of detected objects. The clustered TNOs were detected across different and independent surveys, which has led to claims that the detections are therefore free of observational bias. This apparent clustering has led to the so-called “Planet 9” hypothesis that a super-Earth currently resides in the distant solar system and causes this clustering. The Outer Solar System Origins Survey (OSSOS) is a large program that ran on the Canada–France–Hawaii Telescope from 2013 to 2017, discovering more than 800 new TNOs. One of the primary design goals of OSSOS was the careful determination of observational biases that would manifest within the detected sample. We demonstrate the striking and non-intuitive biases that exist for the detection of TNOs with large semimajor axes. The eight large semimajor axis OSSOS detections are an independent data set, of comparable size to the conglomerate samples used in previous studies. We conclude that the orbital distribution of the OSSOS sample is consistent with being detected from a uniform underlying angular distribution.
DOI：
10.3847/0004-6256/152/3/70
发表时间：
2015-11
期刊：
The Astronomical Journal
影响因子：
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作者：
M. Bannister;M. Bannister;J. Kavelaars;J. Petit;B. Gladman;S. Gwyn;Ying-Tung Chen;K. Volk;M. Alexandersen;S. Benecchi;A. Delsanti;W. Fraser;M. Granvik;W. Grundy;A. Guilbert-Lepoutre;D. Hestroffer;W. Ip;W. Ip;M. Jakubik;L. Jones;N. Kaib;Catherine F. Kavelaars;P. Lacerda;S. Lawler;M. Lehner;Hsing-Wen Lin;T. Lister;P. S. Lykawka;S. Monty;M. Marsset;R. Murray-Clay;K. Noll;A. Parker;R. Pike;P. Rousselot;D. Rusk;M. Schwamb;C. Shankman;B. Sicardy;P. Vernazza;Shiang‐Yu Wang
通讯作者：
M. Bannister;M. Bannister;J. Kavelaars;J. Petit;B. Gladman;S. Gwyn;Ying-Tung Chen;K. Volk;M. Alexandersen;S. Benecchi;A. Delsanti;W. Fraser;M. Granvik;W. Grundy;A. Guilbert-Lepoutre;D. Hestroffer;W. Ip;W. Ip;M. Jakubik;L. Jones;N. Kaib;Catherine F. Kavelaars;P. Lacerda;S. Lawler;M. Lehner;Hsing-Wen Lin;T. Lister;P. S. Lykawka;S. Monty;M. Marsset;R. Murray-Clay;K. Noll;A. Parker;R. Pike;P. Rousselot;D. Rusk;M. Schwamb;C. Shankman;B. Sicardy;P. Vernazza;Shiang‐Yu Wang
DOI：
10.3847/1538-3881/aa6db5
发表时间：
2017
期刊：
The Astronomical Journal
影响因子：
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作者：
Bannister M
通讯作者：
Bannister M