OSSOS: X. How to Use a Survey Simulator: Statistical Testing of Dynamical Models Against the Real Kuiper Belt-猫眼课题宝

OSSOS：X. 如何使用勘测模拟器：针对真实柯伊伯带的动力学模型的统计测试

DOI：

10.3389/fspas.2018.00014

发表时间：

2018

期刊：

arXiv: Earth and Planetary Astrophysics

影响因子：

通讯作者：

中科院分区：

文献类型：

作者：

S. Lawler;J. Kavelaars;J. Kavelaars;M. Alexandersen;M. Bannister;B. Gladman;J. Petit;C. Shankman;C. Shankman

所有调查都包含观测偏差，这使得无法直接将发现的海王星外天体（TNO）的特性与动力学模型进行比较。然而，通过仔细跟踪天空中的测量点、探测极限、跟踪分数和速率削减，可以在测量模拟器软件中对测量的偏差进行建模。勘测模拟器采用固有轨道模型（例如，来自动态柯伊伯带就位模拟的输出）并应用勘测偏差，以便可以将有偏差的模拟物体直接与真实发现进行比较。这种方法在外太阳系起源巡天（OSSOS）及其前身巡天中得到了巨大成功。在本章中，我们给出了使用 OSSOS 勘测模拟器来获取有关柯伊伯带真实结构的知识的四个示例。我们演示了如何将不同的动态模型输出与真实的 TNO 发现进行统计比较、如何量化 TNO 群体内的检测偏差、如何测量内在群体规模以及如何使用非检测的上限。我们希望这将为动态建模者提供一个框架来统计测试其模型的有效性。

All surveys include observational biases, which makes it impossible to directly compare properties of discovered trans-Neptunian Objects (TNOs) with dynamical models. However, by carefully keeping track of survey pointings on the sky, detection limits, tracking fractions, and rate cuts, the biases from a survey can be modelled in Survey Simulator software. A Survey Simulator takes an intrinsic orbital model (from, for example, the output of a dynamical Kuiper belt emplacement simulation) and applies the survey biases, so that the biased simulated objects can be directly compared with real discoveries. This methodology has been used with great success in the Outer Solar System Origins Survey (OSSOS) and its predecessor surveys. In this chapter, we give four examples of ways to use the OSSOS Survey Simulator to gain knowledge about the true structure of the Kuiper Belt. We demonstrate how to statistically compare different dynamical model outputs with real TNO discoveries, how to quantify detection biases within a TNO population, how to measure intrinsic population sizes, and how to use upper limits from non-detections. We hope this will provide a framework for dynamical modellers to statistically test the validity of their models.

THE OUTER SOLAR SYSTEM ORIGINS SURVEY. I. DESIGN AND FIRST-QUARTER DISCOVERIES

DOI： 10.3847/0004-6256/152/3/70

发表时间： 2015-11

期刊：

The Astronomical Journal

影响因子： --

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：

OSSOS. V. Diffusion in the Orbit of a High-perihelion Distant Solar System Object

奥索斯。

DOI： 10.3847/1538-3881/aa6db5

发表时间： 2017

期刊：

The Astronomical Journal

影响因子： --

作者：

Bannister M

通讯作者：

Bannister M

OSSOS: X. How to Use a Survey Simulator: Statistical Testing of Dynamical Models Against the Real Kuiper Belt

OSSOS：X. 如何使用勘测模拟器：针对真实柯伊伯带的动力学模型的统计测试

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