THE OUTER SOLAR SYSTEM ORIGINS SURVEY. I. DESIGN AND FIRST-QUARTER DISCOVERIES
THE OUTER SOLAR SYSTEM ORIGINS SURVEY. I. DESIGN AND FIRST-QUARTER DISCOVERIES
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DOI：
10.3847/0004-6256/152/3/70
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发表时间：
2015-11
期刊：
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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
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文献类型：
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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
我们报告的发现，跟踪和探测情况的85 trans-Neptunian对象（TNOs）从第一个42 deg 2的外太阳系起源调查。这项正在进行的r波段太阳系调查使用了3.6米加拿大-法国-夏威夷望远镜上的0.9度2视场MegaPrime相机。我们对这些TNO的轨道要素精确到分数半长轴不确定性<0.1%。通过密集的观测节奏和创新的天体测量技术，我们仅在两个相对位置就达到了这种精度，而正常的三到五个相对位置。这些发现没有星历偏差，这是首次进行大规模的跨海王星调查。我们还提供了必要的信息，使模型的TNO轨道分布进行测试，对我们的TNO样品。我们确认存在一个冷的“内核”的主要冷经典柯伊伯带内的对象，并推断存在的“搅拌”冷经典柯伊伯带的扩展到至少几个Au以外的2：1平均运动共振与海王星。我们发现Petit等人的人口模型仍然是柯伊伯带的合理代表。完整的调查将于2017年完成，将提供一个重要的共振TNO种群的精美样本，非常适合测试太阳系早期历史期间巨行星迁移的模型。
We report the discovery, tracking, and detection circumstances for 85 trans-Neptunian objects (TNOs) from the first 42 deg2 of the Outer Solar System Origins Survey. This ongoing r-band solar system survey uses the 0.9 deg2 field of view MegaPrime camera on the 3.6 m Canada–France–Hawaii Telescope. Our orbital elements for these TNOs are precise to a fractional semimajor axis uncertainty <0.1%. We achieve this precision in just two oppositions, as compared to the normal three to five oppositions, via a dense observing cadence and innovative astrometric technique. These discoveries are free of ephemeris bias, a first for large trans-Neptunian surveys. We also provide the necessary information to enable models of TNO orbital distributions to be tested against our TNO sample. We confirm the existence of a cold “kernel” of objects within the main cold classical Kuiper Belt and infer the existence of an extension of the “stirred” cold classical Kuiper Belt to at least several au beyond the 2:1 mean motion resonance with Neptune. We find that the population model of Petit et al. remains a plausible representation of the Kuiper Belt. The full survey, to be completed in 2017, will provide an exquisitely characterized sample of important resonant TNO populations, ideal for testing models of giant planet migration during the early history of the solar system.