OSSOS. XVIII. Constraining Migration Models with the 2:1 Resonance Using the Outer Solar System Origins Survey

被引:14
作者
Chen, Ying-Tung [1 ]
Gladman, Brett [2 ]
Volk, Kathryn [3 ]
Murray-Clay, Ruth [4 ]
Lehner, Matthew J. [1 ,5 ,6 ]
Kavelaars, J. J. [7 ,8 ]
Wang, Shiang-Yu [1 ]
Lin, Hsing-Wen [9 ,10 ]
Lykawka, Patryk Sofia [11 ]
Alexandersen, Mike [1 ]
Bannister, Michele T. [12 ]
Lawler, Samantha M. [7 ]
Dawson, Rebekah, I [13 ]
Greenstreet, Sarah [14 ,15 ]
Gwyn, Stephen D. J. [7 ]
Petit, Jean-Marc [16 ]
机构
[1] Acad Sinica, Inst Astron & Astrophys, Taipei 10617, Taiwan
[2] Univ British Columbia, Dept Phys & Astron, 6224 Agr Rd, Vancouver, BC V6T 1Z1, Canada
[3] Univ Arizona, Lunar & Planetary Lab, 1629 E Univ Blvd, Tucson, AZ 85721 USA
[4] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA
[5] Univ Penn, Dept Phys & Astron, 209 S 33rd St, Philadelphia, PA 19125 USA
[6] Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA
[7] Natl Res Council Canada, Herzberg Astron & Astrophys Res Ctr, 5071 W Saanich Rd, Victoria, BC V9E 2E7, Canada
[8] Univ Victoria, Dept Phys & Astron, Elliott Bldg,3800 Finnerty Rd, Victoria, BC V8P 5C2, Canada
[9] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA
[10] Natl Cent Univ, Inst Astron, Taoyuan 32001, Taiwan
[11] Kindai Univ, Sch Interdisciplinary Social & Human Sci, Osaka, Japan
[12] Queens Univ Belfast, Astrophys Res Ctr, Sch Math & Phys, Belfast BT7 1NN, Antrim, North Ireland
[13] Penn State Univ, Ctr Exoplanets & Habitable Worlds, Dept Astron & Astrophys, University Pk, PA 16802 USA
[14] B612 Asteroid Inst, 20 Sunnyside Ave,Suite 427, Mill Valley, CA 94941 USA
[15] Univ Washington, DIRAC Ctr, Dept Astron, 3910 15th Ave NE, Seattle, WA 98195 USA
[16] Univ Bourgogne Franche Comte, CNRS, Inst UTINAM UMR6213, OSU Theta, F-25000 Besancon, France
基金
英国科学技术设施理事会; 加拿大自然科学与工程研究理事会;
关键词
celestial mechanics; Kuiper Belt: general; surveys; KUIPER-BELT; DYNAMICAL INSTABILITY; SIZE DISTRIBUTION; PLUTINOS; OBJECTS; PLANE; ORBIT;
D O I
10.3847/1538-3881/ab480b
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Resonant dynamics plays a significant role in the past evolution and current state of our outer solar system. The population ratios and spatial distribution of Neptune?s resonant populations are direct clues to understanding the history of our planetary system. The orbital structure of the objects in Neptune?s 2:1 mean-motion resonance ("twotinos") has the potential to be a tracer of planetary migration processes. Different migration processes produce distinct architectures, recognizable by well-characterized surveys. However, previous characterized surveys only discovered a few twotinos, making it impossible to model the intrinsic twotino population. With a well-designed cadence and nearly 100% tracking success, the Outer Solar System Origins Survey (OSSOS) discovered 838 trans-Neptunian objects, of which 34 are securely twotinos with well-constrained libration angles and amplitudes. We use the OSSOS twotinos and the survey characterization parameters via the OSSOS survey simulator to inspect the intrinsic population and orbital distributions of twotinos. The estimated twotino population, 8.66 (diameter ?100 km) at 95% confidence, is consistent with the previous low-precision estimate. We also constrain the width of the inclination distribution to a relatively narrow value of 0.275 with a width 0.06. We find a single-slope exponential luminosity function with 0.6 for the twotinos. Finally, for the first time, we meaningfully constrain the fraction of symmetric twotinos and the ratio of the leading asymmetric islands; both fractions are in the range of 0.2?0.6. These measurements rule out certain theoretical models of Neptune?s migration history.
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页数:17
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共 39 条
  • [1] A CAREFULLY CHARACTERIZED AND TRACKED TRANS-NEPTUNIAN SURVEY: THE SIZE DISTRIBUTION OF THE PLUTINOS AND THE NUMBER OF NEPTUNIAN TROJANS
    Alexandersen, Mike
    Gladman, Brett
    Kavelaars, J. J.
    Petit, Jean-Marc
    Gwyn, Stephen D. J.
    Shankman, Cory J.
    Pike, Rosemary E.
    [J]. ASTRONOMICAL JOURNAL, 2016, 152 (05)
  • [2] [Anonymous], 2018, The Astrophysical Journal
  • [3] OSSOS. VII. 800+Trans-Neptunian Objects-The Complete Data Release
    Bannister, Michele T.
    Gladman, Brett J.
    Kavelaars, J. J.
    Petit, Jean-Marc
    Volk, Kathryn
    Chen, Ying-Tung
    Alexandersen, Mike
    Gwyn, Stephen D. J.
    Schwamb, Megan E.
    Ashton, Edward
    Benecchi, Susan D.
    Cabral, Nahuel
    Dawson, Rebekah I.
    Delsanti, Audrey
    Fraser, Wesley C.
    Granvik, Mikael
    Greenstreet, Sarah
    Guilbert-Lepoutre, Aurelie
    Ip, Wing-Huen
    Jakubik, Marian
    Jones, R. Lynne
    Kaib, Nathan A.
    Lacerda, Pedro
    Van Laerhoven, Christa
    Lawler, Samantha
    Lehner, Matthew J.
    Lin, Hsing Wen
    Lykawka, Patryk Sofia
    Marsset, Michael
    Murray-Clay, Ruth
    Pike, Rosemary E.
    Rousselot, Philippe
    Shankman, Cory
    Thirouin, Audrey
    Vernazza, Pierre
    Wang, Shiang-Yu
    [J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2018, 236 (01)
  • [4] THE OUTER SOLAR SYSTEM ORIGINS SURVEY. I. DESIGN AND FIRST-QUARTER DISCOVERIES
    Bannister, Michele T.
    Kavelaars, J. J.
    Petit, Jean-Marc
    Gladman, Brett J.
    Gwyn, Stephen D. J.
    Chen, Ying-Tung
    Volk, Kathryn
    Alexandersen, Mike
    Benecchi, Susan D.
    Delsanti, Audrey
    Fraser, Wesley C.
    Granvik, Mikael
    Grundy, Will M.
    Guilbert-Lepoutre, Aurelie
    Hestroffer, Daniel
    Ip, Wing-Huen
    Jakubik, Marian
    Jones, R. Lynne
    Kaib, Nathan
    Kavelaars, Catherine F.
    Lacerda, Pedro
    Lawler, Samantha
    Lehner, Matthew J.
    Lin, Hsing Wen
    Lister, Tim
    Lykawka, Patryk Sofia
    Monty, Stephanie
    Marsset, Michael
    Murray-Clay, Ruth
    Noll, Keith S.
    Parker, Alex
    Pike, Rosemary E.
    Rousselot, Philippe
    Rusk, David
    Schwamb, Megan E.
    Shankman, Cory
    Sicardy, Bruno
    Vernazza, Pierre
    Wang, Shiang-Yu
    [J]. ASTRONOMICAL JOURNAL, 2016, 152 (03)
  • [5] ASYMMETRIC LIBRATIONS IN EXTERIOR RESONANCES
    BEAUGE, C
    [J]. CELESTIAL MECHANICS & DYNAMICAL ASTRONOMY, 1994, 60 (02) : 225 - 248
  • [6] Orbit fitting and uncertainties for Kuiper belt objects
    Bernstein, G
    Khushalani, B
    [J]. ASTRONOMICAL JOURNAL, 2000, 120 (06) : 3323 - 3332
  • [7] Oort cloud and Scattered Disc formation during a late dynamical instability in the Solar System
    Brasser, R.
    Morbidelli, A.
    [J]. ICARUS, 2013, 225 (01) : 40 - 49
  • [8] The inclination distribution of the Kuiper belt
    Brown, ME
    [J]. ASTRONOMICAL JOURNAL, 2001, 121 (05) : 2804 - 2814
  • [9] A hybrid symplectic integrator that permits close encounters between massive bodies
    Chambers, JE
    [J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1999, 304 (04) : 793 - 799
  • [10] On the Plutinos and Twotinos of the Kuiper belt
    Chiang, EI
    Jordan, AB
    [J]. ASTRONOMICAL JOURNAL, 2002, 124 (06) : 3430 - 3444