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Related papers: Haumea's Shape and Composition

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We use thermal radiometry and visible photometry to constrain the size, shape, and albedo of the large Kuiper belt object Haumea. The correlation between the visible and thermal photometry demonstrates that Haumea's high amplitude and…

Earth and Planetary Astrophysics · Physics 2015-06-18 Alexandra C. Lockwood , Michael E. Brown , John Stansberry

The equilibrium figure of dwarf planet Haumea is studied to determine if the observed shape is compatible with a differentiated hydrostatic body. Three groups of interior models of Haumea are assumed, all with a rocky core and a…

Earth and Planetary Astrophysics · Physics 2026-05-27 C. Staelen , N. Rambaux , F. Chambat , J. C. Castillo-Rogez

Among the four known transneptunian dwarf planets, Haumea is an exotic, very elongated, and fast rotating body. In contrast to the other dwarf planets, its size, shape, albedo, and density are not well constrained. Here we report results of…

Haumea, thought to be the Kuiper Belt's 3rd most massive object, has a fast 3.92 hr rotational period, resulting in its shape as a triaxial ellipsoid. Here, we make the first detailed predictions of Haumea's surface morphology, considering…

Earth and Planetary Astrophysics · Physics 2024-06-14 George D McDonald , Lujendra Ojha

A recent occultation measurement of the dwarf planet Haumea (Ortiz et al. 2017) revealed an elongated shape with the longest axis comparable to Pluto's mean diameter. The chords also indicate a ring around Haumea's equatorial plane, where…

Earth and Planetary Astrophysics · Physics 2018-11-26 T. Müller , Cs. Kiss , V. Ali-Lagoa , J. L. Ortiz , E. Lellouch , P. Santos-Sanz , S. Fornasier , G. Marton , M. Mommert , A. Farkas-Takacs , A. Thirouin , E. Vilenius

Kuiper belt object 136108 Haumea is one of the most fascinating bodies in our solar system. Approximately 2000x1600x1000 km in size, it is one of the largest Kuiper belt objects (KBOs) and an unusually elongated one for its size. The shape…

Earth and Planetary Astrophysics · Physics 2009-11-03 Pedro Lacerda

The dwarf planet (136108) Haumea has an intriguing combination of unique physical properties: near-breakup spin, two regular satellites, and an unexpectedly compact family. While these properties indicate formation by collision, there is no…

Earth and Planetary Astrophysics · Physics 2019-05-29 Benjamin Proudfoot , Darin Ragozzine

The transneptunian region of the solar system is populated by a wide variety of icy bodies showing great diversity. The dwarf planet (136108) Haumea is among the largest TNOs and displays a highly elongated shape and hosts two moons,…

Earth and Planetary Astrophysics · Physics 2016-09-07 F. Gourgeot , B. Carry , C. Dumas , F. Vachier , F. Merlin , P. Lacerda , M. A. Barucci , J. Berthier

Haumea, a rapidly rotating elongated dwarf planet (~ 1500 km in diameter), has two satellites and is associated with a "family" of several smaller Kuiper Belt objects (KBOs) in similar orbits. All members of the Haumea system share a water…

Earth and Planetary Astrophysics · Physics 2015-05-18 Zoe M. Leinhardt , Robert A. Marcus , Sarah T. Stewart

Haumea is a dwarf planet with two known satellites, an unusually high spin rate, and a large collisional family, making it one of the most interesting objects in the outer solar system. A fully self-consistent formation scenario responsible…

Earth and Planetary Astrophysics · Physics 2016-06-08 Luke D. Burkhart , Darin Ragozzine , Michael E. Brown

The recently discovered ring around the dwarf planet (136108) Haumea is located near the 1:3 resonance between the orbital motion of the ring particles and the spin of Haumea. In the current work is studied the dynamics of individual…

Earth and Planetary Astrophysics · Physics 2019-02-12 O. C. Winter1 , G. Borderes-Motta1 , T. Ribeiro

Using precise relative astrometry from the Hubble Space Telescope and the W. M. Keck Telescope, we have determined the orbits and masses of the two dynamically interacting satellites of the dwarf planet (136108) Haumea, formerly 2003 EL61.…

Earth and Planetary Astrophysics · Physics 2014-11-18 Darin Ragozzine , Michael E. Brown

Haumea is the third-largest of the five officially recognized dwarf planets and one of the four that reside in the trans-Neptunian region. It is among the most exotic bodies in the Solar System, with an exceptionally rapid rotation, a…

Haumea is the only known trans-Neptunian object with a ring. The ring is in a position that causes a 3:1 spin-orbit resonance with the rotational period of Haumea, which has a triaxial shape. The non-axisymmetric gravitational field around…

Earth and Planetary Astrophysics · Physics 2020-07-08 Iori Sumida , Yuya Ishizawa , Natsuki Hosono , Takanori Sasaki

The particle dynamics of the recently observed ring around dwarf planet Haumea is numerically investigated. The point mass gravitational force, a second degree and order gravity field, and the solar radiation pressure as the main…

Earth and Planetary Astrophysics · Physics 2018-08-01 Tamás Kovács , Zsolt Regály

Experience shows that celestial bodies have a nearly round shape only from a certain size. At IAU resolution B5, item b, that shape serves as an indicator for a distinct mechanism of its forming, caused by a minimum of mass. Rigid body…

General Physics · Physics 2018-07-24 Konrad Probsthain

The dwarf planet Haumea is one of the most compelling transneptunian objects (TNOs) to study, hosting two small, dynamically interacting satellites, a family of nearby spectrally unique objects, and a ring system. Haumea itself is extremely…

Earth and Planetary Astrophysics · Physics 2024-03-20 Benjamin C. N. Proudfoot , Darin A. Ragozzine , William Giforos , Will M. Grundy , Mariah MacDonald , William J. Oldroyd

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 its origin and, more generally, the collisional…

The shapes and densities of mid-sized and large trans-Neptunian objects (TNOs) are pivotal for understanding a variety of important aspects of planet formation. In this work, we present a Bayesian shape modeling method which combines…

Earth and Planetary Astrophysics · Physics 2026-05-28 Benjamin Proudfoot , Will Grundy , Flavia Luane Rommel , Estela Fernández-Valenzuela , Darin Ragozzine

Thermal emission from Kuiper Belt object (136108) Haumea was measured with Herschel-PACS at 100 and 160 micrometers for almost a full rotation period. Observations clearly indicate a 100-micrometer thermal lightcurve with an amplitude of a…

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