Discovery and Dynamical Analysis of an Extreme Trans-Neptunian Object with a High Orbital Inclination

J. C. Becker, T. Khain, S. J. Hamilton, F. C. Adams, D. W. Gerdes, L. Zullo, K. Franson, S. Millholland, G. M. Bernstein, M. Sako, P. Bernardinelli, K. Napier, L. Markwardt, Hsing Wen Lin, W. Wester, F. B. Abdalla, S. Allam, J. Annis, S. Avila, E. BertinD. Brooks, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, C. E. Cunha, C. B. D'Andrea, L. N.Da Costa, C. Davis, J. De Vicente, H. T. Diehl, P. Doel, T. F. Eifler, B. Flaugher, P. Fosalba, J. Frieman, J. García-Bellido, E. Gaztanaga, D. Gruen, R. A. Gruendl, J. Gschwend, G. Gutierrez, W. G. Hartley, D. L. Hollowood, K. Honscheid, D. J. James, K. Kuehn, N. Kuropatkin, M. A.G. Maia, M. March, J. L. Marshall, F. Menanteau, R. Miquel, R. L.C. Ogando, A. A. Plazas, E. Sanchez, V. Scarpine, R. Schindler, I. Sevilla-Noarbe, M. Smith, R. C. Smith, M. Soares-Santos, F. Sobreira, E. Suchyta, M. E.C. Swanson, A. R. Walker

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

We report the discovery and dynamical analysis of 2015 BP519, an extreme trans-Neptunian object (TNO) detected by the Dark Energy Survey at a heliocentric distance of 55 au, perihelion of ∼36 au, and absolute magnitude H r = 4.3. The current orbit, determined from a 1110 day observational arc, has a semimajor axis a ≈ 450 au, eccentricity e ≈ 0.92, and inclination i ≈ 547deg;. With these orbital elements, 2015 BP519 is the most extreme TNO discovered to date, as quantified by the reduced Kozai action, , which is a conserved quantity at fixed semimajor axis a for axisymmetric perturbations. We discuss the orbital stability and evolution of this object and find that, under the influence of the four known giant planets, 2015 BP519 displays rich dynamical behavior, including rapid diffusion in semimajor axis and more constrained variations in eccentricity and inclination. We also consider the long-term orbital stability and evolutionary behavior within the context of the Planet Nine hypothesis and find that 2015 BP519 adds to the circumstantial evidence for the existence of this proposed new member of the solar system, as it would represent the first member of the population of high-i, π-shepherded TNOs.

Original languageEnglish (US)
Article number81
JournalAstronomical Journal
Volume156
Issue number2
DOIs
StatePublished - Aug 2018

Fingerprint

trans-Neptunian objects
eccentricity
inclination
planet
orbitals
planets
solar system
orbital elements
perturbation
dark energy
arcs
orbits
energy
analysis

Keywords

  • Kuiper Belt objects: individual (2015 BP519)
  • planets and satellites: dynamical evolution and stability

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Becker, J. C., Khain, T., Hamilton, S. J., Adams, F. C., Gerdes, D. W., Zullo, L., ... Walker, A. R. (2018). Discovery and Dynamical Analysis of an Extreme Trans-Neptunian Object with a High Orbital Inclination. Astronomical Journal, 156(2), [81]. https://doi.org/10.3847/1538-3881/aad042

Discovery and Dynamical Analysis of an Extreme Trans-Neptunian Object with a High Orbital Inclination. / Becker, J. C.; Khain, T.; Hamilton, S. J.; Adams, F. C.; Gerdes, D. W.; Zullo, L.; Franson, K.; Millholland, S.; Bernstein, G. M.; Sako, M.; Bernardinelli, P.; Napier, K.; Markwardt, L.; Lin, Hsing Wen; Wester, W.; Abdalla, F. B.; Allam, S.; Annis, J.; Avila, S.; Bertin, E.; Brooks, D.; Rosell, A. Carnero; Kind, M. Carrasco; Carretero, J.; Cunha, C. E.; D'Andrea, C. B.; Costa, L. N.Da; Davis, C.; Vicente, J. De; Diehl, H. T.; Doel, P.; Eifler, T. F.; Flaugher, B.; Fosalba, P.; Frieman, J.; García-Bellido, J.; Gaztanaga, E.; Gruen, D.; Gruendl, R. A.; Gschwend, J.; Gutierrez, G.; Hartley, W. G.; Hollowood, D. L.; Honscheid, K.; James, D. J.; Kuehn, K.; Kuropatkin, N.; Maia, M. A.G.; March, M.; Marshall, J. L.; Menanteau, F.; Miquel, R.; Ogando, R. L.C.; Plazas, A. A.; Sanchez, E.; Scarpine, V.; Schindler, R.; Sevilla-Noarbe, I.; Smith, M.; Smith, R. C.; Soares-Santos, M.; Sobreira, F.; Suchyta, E.; Swanson, M. E.C.; Walker, A. R.

In: Astronomical Journal, Vol. 156, No. 2, 81, 08.2018.

Research output: Contribution to journalArticle

Becker, JC, Khain, T, Hamilton, SJ, Adams, FC, Gerdes, DW, Zullo, L, Franson, K, Millholland, S, Bernstein, GM, Sako, M, Bernardinelli, P, Napier, K, Markwardt, L, Lin, HW, Wester, W, Abdalla, FB, Allam, S, Annis, J, Avila, S, Bertin, E, Brooks, D, Rosell, AC, Kind, MC, Carretero, J, Cunha, CE, D'Andrea, CB, Costa, LND, Davis, C, Vicente, JD, Diehl, HT, Doel, P, Eifler, TF, Flaugher, B, Fosalba, P, Frieman, J, García-Bellido, J, Gaztanaga, E, Gruen, D, Gruendl, RA, Gschwend, J, Gutierrez, G, Hartley, WG, Hollowood, DL, Honscheid, K, James, DJ, Kuehn, K, Kuropatkin, N, Maia, MAG, March, M, Marshall, JL, Menanteau, F, Miquel, R, Ogando, RLC, Plazas, AA, Sanchez, E, Scarpine, V, Schindler, R, Sevilla-Noarbe, I, Smith, M, Smith, RC, Soares-Santos, M, Sobreira, F, Suchyta, E, Swanson, MEC & Walker, AR 2018, 'Discovery and Dynamical Analysis of an Extreme Trans-Neptunian Object with a High Orbital Inclination', Astronomical Journal, vol. 156, no. 2, 81. https://doi.org/10.3847/1538-3881/aad042
Becker, J. C. ; Khain, T. ; Hamilton, S. J. ; Adams, F. C. ; Gerdes, D. W. ; Zullo, L. ; Franson, K. ; Millholland, S. ; Bernstein, G. M. ; Sako, M. ; Bernardinelli, P. ; Napier, K. ; Markwardt, L. ; Lin, Hsing Wen ; Wester, W. ; Abdalla, F. B. ; Allam, S. ; Annis, J. ; Avila, S. ; Bertin, E. ; Brooks, D. ; Rosell, A. Carnero ; Kind, M. Carrasco ; Carretero, J. ; Cunha, C. E. ; D'Andrea, C. B. ; Costa, L. N.Da ; Davis, C. ; Vicente, J. De ; Diehl, H. T. ; Doel, P. ; Eifler, T. F. ; Flaugher, B. ; Fosalba, P. ; Frieman, J. ; García-Bellido, J. ; Gaztanaga, E. ; Gruen, D. ; Gruendl, R. A. ; Gschwend, J. ; Gutierrez, G. ; Hartley, W. G. ; Hollowood, D. L. ; Honscheid, K. ; James, D. J. ; Kuehn, K. ; Kuropatkin, N. ; Maia, M. A.G. ; March, M. ; Marshall, J. L. ; Menanteau, F. ; Miquel, R. ; Ogando, R. L.C. ; Plazas, A. A. ; Sanchez, E. ; Scarpine, V. ; Schindler, R. ; Sevilla-Noarbe, I. ; Smith, M. ; Smith, R. C. ; Soares-Santos, M. ; Sobreira, F. ; Suchyta, E. ; Swanson, M. E.C. ; Walker, A. R. / Discovery and Dynamical Analysis of an Extreme Trans-Neptunian Object with a High Orbital Inclination. In: Astronomical Journal. 2018 ; Vol. 156, No. 2.
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T1 - Discovery and Dynamical Analysis of an Extreme Trans-Neptunian Object with a High Orbital Inclination

AU - Becker, J. C.

AU - Khain, T.

AU - Hamilton, S. J.

AU - Adams, F. C.

AU - Gerdes, D. W.

AU - Zullo, L.

AU - Franson, K.

AU - Millholland, S.

AU - Bernstein, G. M.

AU - Sako, M.

AU - Bernardinelli, P.

AU - Napier, K.

AU - Markwardt, L.

AU - Lin, Hsing Wen

AU - Wester, W.

AU - Abdalla, F. B.

AU - Allam, S.

AU - Annis, J.

AU - Avila, S.

AU - Bertin, E.

AU - Brooks, D.

AU - Rosell, A. Carnero

AU - Kind, M. Carrasco

AU - Carretero, J.

AU - Cunha, C. E.

AU - D'Andrea, C. B.

AU - Costa, L. N.Da

AU - Davis, C.

AU - Vicente, J. De

AU - Diehl, H. T.

AU - Doel, P.

AU - Eifler, T. F.

AU - Flaugher, B.

AU - Fosalba, P.

AU - Frieman, J.

AU - García-Bellido, J.

AU - Gaztanaga, E.

AU - Gruen, D.

AU - Gruendl, R. A.

AU - Gschwend, J.

AU - Gutierrez, G.

AU - Hartley, W. G.

AU - Hollowood, D. L.

AU - Honscheid, K.

AU - James, D. J.

AU - Kuehn, K.

AU - Kuropatkin, N.

AU - Maia, M. A.G.

AU - March, M.

AU - Marshall, J. L.

AU - Menanteau, F.

AU - Miquel, R.

AU - Ogando, R. L.C.

AU - Plazas, A. A.

AU - Sanchez, E.

AU - Scarpine, V.

AU - Schindler, R.

AU - Sevilla-Noarbe, I.

AU - Smith, M.

AU - Smith, R. C.

AU - Soares-Santos, M.

AU - Sobreira, F.

AU - Suchyta, E.

AU - Swanson, M. E.C.

AU - Walker, A. R.

PY - 2018/8

Y1 - 2018/8

N2 - We report the discovery and dynamical analysis of 2015 BP519, an extreme trans-Neptunian object (TNO) detected by the Dark Energy Survey at a heliocentric distance of 55 au, perihelion of ∼36 au, and absolute magnitude H r = 4.3. The current orbit, determined from a 1110 day observational arc, has a semimajor axis a ≈ 450 au, eccentricity e ≈ 0.92, and inclination i ≈ 547deg;. With these orbital elements, 2015 BP519 is the most extreme TNO discovered to date, as quantified by the reduced Kozai action, , which is a conserved quantity at fixed semimajor axis a for axisymmetric perturbations. We discuss the orbital stability and evolution of this object and find that, under the influence of the four known giant planets, 2015 BP519 displays rich dynamical behavior, including rapid diffusion in semimajor axis and more constrained variations in eccentricity and inclination. We also consider the long-term orbital stability and evolutionary behavior within the context of the Planet Nine hypothesis and find that 2015 BP519 adds to the circumstantial evidence for the existence of this proposed new member of the solar system, as it would represent the first member of the population of high-i, π-shepherded TNOs.

AB - We report the discovery and dynamical analysis of 2015 BP519, an extreme trans-Neptunian object (TNO) detected by the Dark Energy Survey at a heliocentric distance of 55 au, perihelion of ∼36 au, and absolute magnitude H r = 4.3. The current orbit, determined from a 1110 day observational arc, has a semimajor axis a ≈ 450 au, eccentricity e ≈ 0.92, and inclination i ≈ 547deg;. With these orbital elements, 2015 BP519 is the most extreme TNO discovered to date, as quantified by the reduced Kozai action, , which is a conserved quantity at fixed semimajor axis a for axisymmetric perturbations. We discuss the orbital stability and evolution of this object and find that, under the influence of the four known giant planets, 2015 BP519 displays rich dynamical behavior, including rapid diffusion in semimajor axis and more constrained variations in eccentricity and inclination. We also consider the long-term orbital stability and evolutionary behavior within the context of the Planet Nine hypothesis and find that 2015 BP519 adds to the circumstantial evidence for the existence of this proposed new member of the solar system, as it would represent the first member of the population of high-i, π-shepherded TNOs.

KW - Kuiper Belt objects: individual (2015 BP519)

KW - planets and satellites: dynamical evolution and stability

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