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    Col-OSSOS: The Colors of the Outer Solar System Origins Survey

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    Schwamb_2019_ApJS_243_12.pdf
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    Author
    Schwamb, Megan E. cc
    Fraser, Wesley C. cc
    Bannister, Michele T. cc
    Marsset, Michaël
    Pike, Rosemary E. cc
    Kavelaars, J. J. cc
    Benecchi, Susan D. cc
    Lehner, Matthew J. cc
    Wang, Shiang-Yu
    Thirouin, Audrey
    Delsanti, Audrey
    Peixinho, Nuno
    Volk, Kathryn cc
    Alexandersen, Mike
    Chen, Ying-Tung cc
    Gladman, Brett
    Gwyn, Stephen D. J.
    Petit, Jean-Marc cc
    Show allShow less
    Affiliation
    Univ Arizona, Lunar & Planetary Lab
    Issue Date
    2019-07-11
    Keywords
    Kuiper belt: general
    minor planets, asteroids: general
    planets and satellites: dynamical evolution and stability
    planets and satellites: formation
    surveys
    
    Metadata
    Show full item record
    Publisher
    IOP PUBLISHING LTD
    Citation
    Schwamb, M. E., Fraser, W. C., Bannister, M. T., Marsset, M., Pike, R. E., Kavelaars, J. J., ... & Delsanti, A. (2019). Col-OSSOS: The Colors of the Outer Solar System Origins Survey. The Astrophysical Journal Supplement Series, 243(1), 12.
    Journal
    ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
    Rights
    Copyright © 2019. The American Astronomical Society. All rights reserved.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    The Colours of the Outer Solar System Origins Survey is acquiring near-simultaneous g, r, and J photometry of unprecedented precision with the Gemini North Telescope, targeting nearly 100 trans-Neptunian objects (TNOs) brighter than m(r) = 23.6 mag discovered in the Outer Solar System Origins Survey. Combining the optical and near-infrared photometry with the well-characterized detection efficiency of the Colours of the Outer Solar System Origins Survey target sample will provide the first flux-limited compositional dynamical map of the outer solar system. In this paper, we describe our observing strategy and detail the data reduction processes we employ, including techniques to mitigate the impact of rotational variability. We present optical and near-infrared colors for 35 TNOs. We find two taxonomic groups for the dynamically excited TNOs, the neutral and red classes, which divide at g - r similar or equal to 0.75. Based on simple albedo and orbital distribution assumptions, we find that the neutral class outnumbers the red class, with a ratio of 4:1 and potentially as high as 11:1. Including in our analysis constraints from the cold classical objects, which are known to exhibit unique albedos and r - z colors, we find that within our measurement uncertainty our observations are consistent with the primordial solar system protoplanetesimal disk being neutral class dominated, with two major compositional divisions in grJ color space.
    ISSN
    0067-0049
    DOI
    10.3847/1538-4365/ab2194
    Version
    Final published version
    Sponsors
    Large and Long Program at the Gemini Observatory [GN-2014B-LP-1, GN-2015A-LP-1, GN-2015B-LP-1]; Gemini Observatory; Academia Sinica Postdoctoral Fellowship; UK STFC [ST/P0003094/1, ST/L000709/1]; National Research Council of Canada; National Science and Engineering Research Council of Canada; Portuguese FCT-Foundation for Science and Technology [SFRH/BGCT/113686/2015]; National Funds through FCT-Foundation for Science and Technology [UID/Multi/00611/2013]; FEDER-European Regional Development Fund through COMPETE 2020-Operational Programme Competitiveness and Internationalisation [POCI-01-0145-FEDER-006922]; NASA [NNX15AH59G, NNX14AG93G]; Canadian Space Agency; National Aeronautics and Space Administration [NNX08AR22G]; National Science Foundation [AST-1238877]; Alfred P. Sloan Foundation; U.S. Department of Energy Office of Science; Brazilian Participation Group; Carnegie Institution for Science; Carnegie Mellon University; Chilean Participation Group; French Participation Group; Harvard-Smithsonian Center for Astrophysics; Instituto de Astrofisica de Canarias; Johns Hopkins University; Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo; Lawrence Berkeley National Laboratory; Leibniz Institut fur Astrophysik Potsdam (AIP); Max-Planck-Institut fur Astronomie (MPIA Heidelberg); Max-Planck-Institut fur Astrophysik (MPA Garching); Max-Planck-Institut fur Extraterrestrische Physik (MPE); National Astronomical Observatories of China; New Mexico State University; New York University; University of Notre Dame; Observatario Nacional/MCTI; Ohio State University; Pennsylvania State University; Shanghai Astronomical Observatory; United Kingdom Participation Group; Universidad Nacional Autonoma de Mexico; University of Arizona; University of Colorado Boulder; University of Oxford; University of Portsmouth; University of Utah; University of Virginia; University of Washington; University of Wisconsin; Vanderbilt University; Yale University
    ae974a485f413a2113503eed53cd6c53
    10.3847/1538-4365/ab2194
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