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

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 ≈ 54°. With these orbital elements, 2015 BP519 is the most extreme TNO discovered to date, as quantified by the reduced Kozai action, $${\eta }_{0}={(1-{e}^{2})}^{1/2}\cos i$$, 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, piv-shepherded TNOs.

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Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
Contributing Org.:
DES Collaboration
OSTI Identifier:
1462215
Alternate Identifier(s):
OSTI ID: 1468020
Report Number(s):
arXiv:1805.05355; FERMILAB-PUB-18-135-AE
Journal ID: ISSN 1538-3881; 1674863; TRN: US1902121
Grant/Contract Number:  
AC02-07CH11359; AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
The Astronomical Journal (Online)
Additional Journal Information:
Journal Name: The Astronomical Journal (Online); Journal Volume: 156; Journal Issue: 2; Journal ID: ISSN 1538-3881
Publisher:
IOP Publishing - AAAS
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS

Citation Formats

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., and Walker, A. R. Discovery and Dynamical Analysis of an Extreme Trans-Neptunian Object with a High Orbital Inclination. United States: N. p., 2018. Web. doi: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. United States. doi: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., and Walker, A. R. Fri . "Discovery and Dynamical Analysis of an Extreme Trans-Neptunian Object with a High Orbital Inclination". United States. doi:https://doi.org/10.3847/1538-3881/aad042. https://www.osti.gov/servlets/purl/1462215.
@article{osti_1462215,
title = {Discovery and Dynamical Analysis of an Extreme Trans-Neptunian Object with a High Orbital Inclination},
author = {Becker, J. C. and Khain, T. and Hamilton, S. J. and Adams, F. C. and Gerdes, D. W. and Zullo, L. and Franson, K. and Millholland, S. and Bernstein, G. M. and Sako, M. and Bernardinelli, P. and Napier, K. and Markwardt, L. and Lin, Hsing Wen and Wester, W. and Abdalla, F. B. and Allam, S. and Annis, J. and Avila, S. and Bertin, E. and Brooks, D. and Rosell, A. Carnero and Kind, M. Carrasco and Carretero, J. and Cunha, C. E. and D’Andrea, C. B. and Costa, L. N. da and Davis, C. and Vicente, J. De and Diehl, H. T. and Doel, P. and Eifler, T. F. and Flaugher, B. and Fosalba, P. and Frieman, J. and García-Bellido, J. and Gaztanaga, E. and Gruen, D. and Gruendl, R. A. and Gschwend, J. and Gutierrez, G. and Hartley, W. G. and Hollowood, D. L. and Honscheid, K. and James, D. J. and Kuehn, K. and Kuropatkin, N. and Maia, M. A. G. and March, M. and Marshall, J. L. and Menanteau, F. and Miquel, R. and Ogando, R. L. C. and Plazas, A. A. and Sanchez, E. and Scarpine, V. and Schindler, R. and Sevilla-Noarbe, I. and Smith, M. and Smith, R. C. and Soares-Santos, M. and Sobreira, F. and Suchyta, E. and Swanson, M. E. C. and Walker, A. R.},
abstractNote = {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 ≈ 54°. With these orbital elements, 2015 BP519 is the most extreme TNO discovered to date, as quantified by the reduced Kozai action, ${\eta }_{0}={(1-{e}^{2})}^{1/2}\cos i$, 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, piv-shepherded TNOs.},
doi = {10.3847/1538-3881/aad042},
journal = {The Astronomical Journal (Online)},
number = 2,
volume = 156,
place = {United States},
year = {2018},
month = {8}
}

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    • de la Fuente Marcos, Carlos; de la Fuente Marcos, Raúl
    • Research Notes of the AAS, Vol. 2, Issue 3
    • DOI: 10.3847/2515-5172/aadfec

    Two temperate sub-Neptunes transiting the star EPIC 212737443
    journal, June 2019

    • Herath, Mahesh; Hinse, Tobias C.; Livingston, John H.
    • Monthly Notices of the Royal Astronomical Society, Vol. 488, Issue 1
    • DOI: 10.1093/mnras/stz1641

    The fate of planetesimal discs in young open clusters: implications for 1I/’Oumuamua, the Kuiper belt, the Oort cloud, and more
    journal, April 2019

    • Hands, T. O.; Dehnen, W.; Gration, A.
    • Monthly Notices of the Royal Astronomical Society, Vol. 490, Issue 1
    • DOI: 10.1093/mnras/stz1069

    A New High Perihelion Trans-Plutonian Inner Oort Cloud Object: 2015 TG387
    journal, March 2019

    • Sheppard, Scott S.; Trujillo, Chadwick A.; Tholen, David J.
    • The Astronomical Journal, Vol. 157, Issue 4
    • DOI: 10.3847/1538-3881/ab0895