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

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posted on 2023-06-09, 04:19 authored by Kathy RomerKathy Romer, I Sevilla-Noarbe, et al. The DES Collaboration
We report the discovery of the eighth and ninth known Trojans in stable orbits around Neptune's leading Lagrange point, L4. The objects 2014 QO 441 and 2014 QP 441 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). With an eccentricity of 0.104, 2014 QO 441 has the most eccentric orbit of the eleven known stable Neptune Trojans. Here we describe the search procedure and investigate the objects' long-term dynamical stability and physical properties.

Funding

STFC Consolidated Grant Supplement; G1316; STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCIL; ST/M000753/1

History

Publication status

  • Published

File Version

  • Published version

Journal

Astronomical Journal

ISSN

0004-6256

Publisher

American Astronomical Society

Volume

151

Page range

39

Department affiliated with

  • Physics and Astronomy Publications

Research groups affiliated with

  • Astronomy Centre Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2016-12-05

First Open Access (FOA) Date

2016-12-05

First Compliant Deposit (FCD) Date

2016-12-05

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