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

Journal Article · · The Astronomical Journal (Online)
 [1]
  1. Univ. of Michigan, Ann Arbor, MI (United States). et al.
+ Show Author Affiliations

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.

Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
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), Journal Name: The Astronomical Journal (Online) Journal Issue: 2 Vol. 151; ISSN 1538-3881
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English

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Asteroid (469219) 2016 HO 3 , the smallest and closest Earth quasi-satellite journal August 2016
The Dark Energy Survey: more than dark energy – an overview journal March 2016
Discovery and Dynamical Analysis of an Extreme Trans-Neptunian Object with a High Orbital Inclination journal August 2018
Dynamical Analysis of Three Distant Trans-Neptunian Objects with Similar Orbits journal November 2018
The Dark Energy Survey: more than dark energy - an overview text January 2016
Asteroid (469219) 2016 HO3, the smallest and closest Earth quasi-satellite text January 2016
Dynamical Analysis of Three Distant Trans-Neptunian Objects with Similar Orbits text January 2018

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