期刊
PLANETARY SCIENCE JOURNAL
卷 2, 期 2, 页码 -出版社
IOP Publishing Ltd
DOI: 10.3847/PSJ/abe53e
关键词
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资金
- National Aeronautics and Space Administration [NNX17AF21G]
- National Science Foundation [AST-2009096, AST-1138766, AST-1536171]
- U.S. Department of Energy
- U.S. National Science Foundation
- Ministry of Science and Education of Spain
- Science and Technology Facilities Council of the United Kingdom
- Higher Education Funding Council for England
- National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign
- Center for Cosmology and Astro-Particle Physics at the Ohio State University
- Mitchell Institute for Fundamental Physics and Astronomy at Texas AM University
- Financiadora de Estudos e Projetos
- Fundacao Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro
- Ministerio da Ciencia, Tecnologia e Inovacao
- Deutsche Forschungsgemeinschaft
- University of California at Santa Cruz
- Argonne National Laboratory
- University of Cambridge
- Centro de Investigaciones Energeticas, Medioambientales y Tecnologicas-Madrid
- University of Chicago
- University College London
- DES-Brazil Consortium
- University of Edinburgh
- Eidgenoessische Technische Hochschule (ETH) Zuerich
- Fermi National Accelerator Laboratory
- University of Illinois at Urbana-Champaign
- Institut de Ciencies de l'Espai (IEEC/CSIC)
- Institut de Fisica d'Altes Energies
- Ludwig-Maximilians Universitaet Muenchen
- associated Excellence Cluster Universe
- University of Michigan
- NFS's NOIRLab
- University of Nottingham
- Ohio State University
- University of Pennsylvania
- University of Portsmouth
- SLAC National Accelerator Laboratory
- University of Sussex
- Texas AM University
- OzDES Membership Consortium
- MICINN [ESP2017-89838, PGC2018-094773, PGC2018-102021, SEV-2016-0588, SEV-2016-0597, MDM-2015-0509]
- ERDF funds from the European Union
- CERCA program of the Generalitat de Catalunya
- ERC [240672, 291329, 306478]
- Brazilian Instituto Nacional de Ciencia e Tecnologia (INCT) do e-Universo (CNPq) [465376/2014-2]
- U.S. Department of Energy, Office of Science, Office of High Energy Physics [DE-AC02-07CH11359]
- European Research Council under the European Union
- Kavli Institute of Cosmological Physics at the University of Chicago
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico
- Lawrence Berkeley National Laboratory
- Stanford University
The apparent clustering in longitude of perihelion and ascending nodes of extreme trans-Neptunian objects (ETNOs) has been attributed to the gravitational effects of an unseen planet in the outer solar system. However, analysis of 14 ETNOs does not provide evidence for angular clustering, suggesting that the detected objects are consistent with a uniform population distribution.
The apparent clustering in longitude of perihelion pi and ascending node Omega of extreme trans-Neptunian objects (ETNOs) has been attributed to the gravitational effects of an unseen 5-10 Earth-mass planet in the outer solar system. To investigate how selection bias may contribute to this clustering, we consider 14 ETNOs discovered by the Dark Energy Survey, the Outer Solar System Origins Survey, and the survey of Sheppard and Trujillo. Using each survey's published pointing history, depth, and TNO tracking selections, we calculate the joint probability that these objects are consistent with an underlying parent population with uniform distributions in pi and Omega. We find that the mean scaled longitude of perihelion and orbital poles of the detected ETNOs are consistent with a uniform population at a level between 17% and 94% and thus conclude that this sample provides no evidence for angular clustering.
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