Observation of two new L4 Neptune Trojans in the Dark Energy Survey supernova fields

Gerdes, D. W.

doi:10.3847/0004-6256/151/2/39

Title: Observation of two new L4 Neptune Trojans in the Dark Energy Survey supernova fields

Journal Article · Thu Jan 28 00:00:00 EST 2016 · The Astronomical Journal (Online)

DOI:https://doi.org/10.3847/0004-6256/151/2/39· OSTI ID:1223238

Gerdes, D. W. ^[1]

Univ. of Michigan, Ann Arbor, MI (United States). et al.

We report the discovery of the eighth and ninth known Trojans in stable orbits around Neptune's leading Lagrange point, L4. The objects 2014 QO₄₄₁ and 2014 QP₄₄₁ were detected in data obtained during the 2013-14 and 2014-15 observing seasons by the Dark Energy Survey, using the Dark Energy Camera (DECam) on the 4-meter Blanco telescope at Cerro Tololo Inter- American Observatory. Both are in high-inclination orbits (18.8° and 19.4° respectively). Furthermore, with an eccentricity of 0.104, 2014 QO₄₄₁ has the most eccentric orbit of the eleven known stable Neptune Trojans. We describe the search procedure and investigate the objects' long-term dynamical stability and physical properties.

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Research Organization:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

Contributing Organization:: The DES Collaboration

Grant/Contract Number:: AC02-07CH11359

OSTI ID:: 1223238

Report Number(s):: FERMILAB-PUB-15-299-AE; arXiv eprint number arXiv:1507.05177

Journal Information:: The Astronomical Journal (Online), Vol. 151, Issue 2; ISSN 1538-3881

Publisher:: IOP PublishingCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 17 works

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Dynamical Analysis of Three Distant Trans-Neptunian Objects with Similar Orbits Khain, T.; Becker, J. C.; Adams, F. C. The Astronomical Journal, Vol. 156, Issue 6 https://doi.org/10.3847/1538-3881/aaeb2a	journal	November 2018
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Dynamical Analysis of Three Distant Trans-Neptunian Objects with Similar Orbits Khain, T.; Becker, J. C.; Adams, F. C. arXiv https://doi.org/10.48550/arxiv.1810.10084	text	January 2018

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