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28 March 2024
 
  » arxiv » 1511.2895

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The Outer Solar System Origins Survey: I. Design and First-Quarter Discoveries
Michele T. Bannister ; J. J. Kavelaars ; Jean-Marc Petit ; Brett J. Gladman ; Stephen D. J. Gwyn ; Ying-Tung Chen ; Kathryn Volk ; Mike Alexandersen ; Susan Benecchi ; Audrey Delsanti ; Wesley Fraser ; Mikael Granvik ; Will M. Grundy ; Aurelie Guilbert-Lepoutre ; Daniel Hestroffer ; Wing-Huen Ip ; Marian Jakubik ; Lynne Jones ; Nathan Kaib ; Pedro Lacerda ; Samantha Lawler ; Matthew J. Lehner ; Hsing Wen Lin ; Tim Lister ; Patryk Sofia Lykawka ; Stephanie Monty ; Michael Marsset ; Ruth Murray-Clay ; Keith Noll ; Alex Parker ; Rosemary E. Pike ; Philippe Rousselot ; David Rusk ; Megan E. Schwamb ; Cory Shankman ; Bruno Sicardy ; Pierre Vernazza ; Shiang-Yu Wang ;
Date 9 Nov 2015
AbstractWe report 85 trans-Neptunian objects (TNOs) from the first 42 deg$^{2}$ of the Outer Solar System Origins Survey (OSSOS), an ongoing $r$-band survey with the 0.9 deg$^{2}$ field-of-view MegaPrime camera on the 3.6 m Canada-France-Hawaii Telescope. A dense observing cadence and our innovative astrometric technique produced survey-measured orbital elements for these TNOs precise to a fractional semi-major axis uncertainty $<0.1\%$ in two sequential years, instead of the 3-5 years needed with sparser observing strategies. These discoveries are free of ephemeris bias, a first for large Kuiper belt surveys. The survey’s simulator provides full characterization, including calibrated detection efficiency functions, for debiasing the discovery sample. We confirm the existence of a cold "kernel" of objects within the main cold classical Kuiper belt, and imply 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. The population model of Petit et al. (2011) remains a plausible interpretation of the Kuiper belt. The full survey 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.
Source arXiv, 1511.2895
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