The Eris/Dysnomia system I: The orbit of Dysnomia

@article{Holler2021TheES,
  title={The Eris/Dysnomia system I: The orbit of Dysnomia},
  author={Bryan J. Holler and William M. Grundy and Marc W. Buie and Keith S. Noll},
  journal={Icarus},
  year={2021}
}
Abstract We present new results on the Eris/Dysnomia system including analysis of new images from the WFC3 instrument on the Hubble Space Telescope (HST). Seven HST orbits were awarded to program 15,171 in January and February 2018, with the intervals between observations selected to sample Dysnomia over a full orbital period. Using relative astrometry of Eris and Dysnomia, we computed a best-fit Keplerian orbit for Dysnomia. Based on the Keplerian fit, we find an orbital period of 15.785899±0… Expand
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References

SHOWING 1-10 OF 38 REFERENCES
Time series photometry of the dwarf planet ERIS (2003 UB313)
Context. The dwarf planet Eris (2003 UB313, formerly known also as "Xena") is the largest KBO discovered up to now. Despite being larger than Pluto and having many similarities to it, it has not been… Expand
A study of photometric variations on the dwarf planet (136199) Eris
Context. Eris is the largest dwarf planet currently known in the solar system. Knowledge about its physical parameters is necessary to interpret the characteristics of these kinds of bodies. Aims.… Expand
The Mass of Dwarf Planet Eris
TLDR
New observations with the Keck Observatory and the Hubble Space Telescopes show that Dysnomia has a circular orbit with a radius of 37,350 � 140 (1-σ) kilometers and a 15.774 � 0.002 day orbital period around Eris, which agrees with expectations for a satellite formed out of the orbiting debris left from a giant impact. Expand
Tentative detection of the rotation of Eris
We report a multi-week sequence of B-band photometric measurements of the dwarf planet Eris using the Swift satellite. The use of an observatory in low-Earth orbit provides better temporal sampling… Expand
Discovery of a Makemakean Moon
We describe the discovery of a satellite in orbit about the dwarf planet (136472) Makemake. This satellite, provisionally designated S/2015 (136472) 1, was detected in imaging data collected with the… Expand
New insights on ices in Centaur and Transneptunian populations
Abstract A Large Program (LP) has been carried out at ESO–VLT using almost simultaneously the UT1, UT2 and UT4 telescopes (Cerro Paranal, Chile). The aim of this Large Program was to obtain… Expand
The origin of Pluto's orbit: implications for the
The origin of the highly eccentric, inclined, and resonance-locked orbit of Pluto has long been a puzzle. A possible explanation has been proposed recently which suggests that these extraordinary… Expand
The origin of Pluto's peculiar orbit
THE origin of Pluto's unusual orbit—the most eccentric and inclined of all the planets—remains a mystery. The orbits of Pluto and Neptune overlap, but close approaches of these two planets are… Expand
A Pluto-like radius and a high albedo for the dwarf planet Eris from an occultation
TLDR
The observation of a multi-chord stellar occultation by Eris on 6 November 2010 is reported, consistent with a spherical shape for Eris, and it is anticipated that this atmosphere may periodically sublimate as Eris approaches its perihelion, at 37.8 astronomical units from the Sun. Expand
Formation of Iapetus’ Extreme Albedo Dichotomy by Exogenically Triggered Thermal Ice Migration
TLDR
It is demonstrated that all these characteristics, and the asymmetry’s large amplitude, can be plausibly explained by runaway global thermal migration of water ice, triggered by the deposition of dark material on the leading hemisphere. Expand
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