The Pan-STARRS 1 Discoveries of five new Neptune Trojans

  title={The Pan-STARRS 1 Discoveries of five new Neptune Trojans},
  author={Hsing-Wen Lin and Ying-Tung Chen and Matthew J. Holman and Wing-H. Ip and Matthew J. Payne and Pedro Lacerda and Wesley C. Fraser and David W. Gerdes and Allyson Bieryla and Z.-F. Sie and W-P. Chen and W. S. Burgett and Larry Denneau and Robert Jedicke and N. Kaiser and Eugene. A. Magnier and John L. Tonry and Richard J. Wainscoat and Christopher M. Waters},
  journal={arXiv: Earth and Planetary Astrophysics},
In this work we report the detection of seven Neptune Trojans (NTs) in the Pan-STARRS 1 (PS1) survey. Five of these are new discoveries, consisting of four L4 Trojans and one L5 Trojan. Our orbital simulations show that the L5 Trojan stably librates for only several million years. This suggests that the L5 Trojan must be of recent capture origin. On the other hand, all four new L4 Trojans stably occupy the 1:1 resonance with Neptune for more than 1 Gyr. They can, therefore, be of primordial… Expand

Figures and Tables from this paper

Neptune Trojans: a Revisit and a New Membertwo
Abstract Up to now, 17 Neptune Trojan asteroids have been detected with their orbits being well determined by continuous observations. This paper analyzes systematically their orbital dynamics. OurExpand
A Dwarf Planet Class Object in the 21:5 Resonance with Neptune
We report the discovery of a $H_r = 3.4\pm0.1$ dwarf planet candidate by the Pan-STARRS Outer Solar System Survey. 2010 JO$_{179}$ is red with $(g-r)=0.88 \pm 0.21$, roughly round, and slowlyExpand
OSSOS: The eccentricity and inclination distributions of the stable neptunian Trojans
Abstract The minor planets on orbits that are dynamically stable in Neptune’s 1:1 resonance on Gyr timescales were likely em:laced by Neptune’s outward migration. We explore the intrinsic librationExpand
Reprint of "Evidence for color dichotomy in the primordial Neptunian Trojan population"
Abstract In the current model of early Solar System evolution, the stable members of the Jovian and Neptunian Trojan populations were captured into resonance from the leftover reservoir ofExpand
Evidence for color dichotomy in the primordial Neptunian Trojan population
Abstract In the current model of early Solar System evolution, the stable members of the Jovian and Neptunian Trojan populations were captured into resonance from the leftover reservoir ofExpand
Asteroids in the High cadence Transient Survey
We report on the serendipitous observations of Solar System objects imaged during the High cadence Transient Survey (HiTS) 2014 observation campaign. Data from this high cadence, wide field surveyExpand
Discovery and Dynamical Analysis of an Extreme Trans-Neptunian Object with a High Orbital Inclination
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, andExpand
Evaluating the Dynamical Stability of Outer Solar System Objects in the Presence of Planet Nine
We evaluate the dynamical stability of a selection of outer solar system objects in the presence of the proposed new Solar System member Planet Nine. We use a Monte Carlo suite of numerical N-bodyExpand
A darkness full of worlds: Prospects for discovery surveys in the outer solar system
A compilation of the characterization properties of the discovery surveys, both those previously published and those surveys which for various reasons were not present in the literature. Expand
A dearth of small members in the Haumea family revealed by OSSOS
While collisional families are common in the asteroid belt, only one is known in the Kuiper belt, linked to the dwarf planet Haumea. The characterization of Haumea’s family helps to constrain itsExpand


The Size Distribution of the Neptune Trojans and the Missing Intermediate Sized Planetesimals
We present an ultra-deep survey for Neptune Trojans using the Subaru 8.2-m and Magellan 6.5-m telescopes. The survey reached a 50% detection efficiency in the R-band at 25.7 magnitudes and covered 49Expand
How Long-Lived Are the Hypothetical Trojan Populations of Saturn, Uranus, and Neptune?
We investigate the possibility that fractions of the primordial populations at the triangular Lagrangian points of Saturn, Uranus, and Neptune have survived to the present and form (as yetExpand
We present the discovery of a long-term stable L5 (trailing) Neptune Trojan in data acquired to search for candidate trans-Neptunian objects for the New Horizons spacecraft to fly by during anExpand
Origin and dynamical evolution of Neptune Trojans – II. Long-term evolution
Following our earlier work studying the formation of the Neptunian Trojan population during the planet's migration, we present results examining the eventual fate of the Trojan clouds produced inExpand
Observation of two new L4 Neptune Trojans in the Dark Energy Survey supernova fields
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 obtainedExpand
Size Distribution of Faint Jovian L4 Trojan Asteroids
We detected 51 faint Jovian Trojan asteroids in the L4 Lagrangian swarm in survey observations near opposition and the ecliptic using a wide-field mosaicked CCD camera on the 8.2 m Subaru Telescope.Expand
Neptune Trojans (NTs) are swarms of outer solar system objects that lead/trail planet Neptune during its revolutions around the Sun. Observations indicate that NTs form a thick cloud of objects withExpand
2004 KV18: a visitor from the scattered disc to the Neptune Trojan population
We have performed a detailed dynamical study of the recently identified Neptunian Trojan 2004 KV18, only the second object to be discovered librating around Neptune's trailing Lagrange point, L5. WeExpand
2008 LC18: A potentially unstable Neptune Trojan
The recent discovery of the first Neptune Trojan at the planet's trailing (L5) Lagrange point, 2008 LC18, offers an opportunity to confirm the formation mechanism of a member of this important tracerExpand
The intrinsic Neptune Trojan orbit distribution: Implications for the primordial disk and planet migration
Abstract The present-day orbit distribution of the Neptune Trojans is a powerful probe of the dynamical environment of the outer Solar System during the late stages of planet migration. In this work,Expand