Global ETD Search
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Showing 1 to 16 of 16 for “"Kuiper Belt"”.
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Colors of Kuiper Belt objects : the relationship between KBO colors and Kuiper Belt plane inclination
… orbits the sun just beyond Neptune, known as the Kuiper Belt. These objects, thought to be the progenitors of short period comets, could provide a sample of primordial material in our solar system, constraining solar system formation models. The colors of Kuiper belt objects (KBOs) can indicate …
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A study of binary Kuiper Belt objects
… 100km in diameter (Jewitt 1998) reside in the Kuiper Belt, beyond the orbit of Neptune. Since 1992 observational surveys have discovered over one thousand of these objects, believed to be fossil remnants of events that occurred nearly 4.5 billion years ago. Sixteen of these objects are …
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Search for binary Kuiper Belt objects using images from the deep ecliptic survey and Magellan telescopes
… developed for examining image frames containing Kuiper Belt objects and classifying those KBOs as binary candidate / not binary candidate. This method uses an elliptical point-spread function fitting technique, relying on the fact that a binary KBO system will appear in a.telescope image as an …
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Evaluation, design, and construction of the Wallace Astrophysical Observatory Camera for astronomical observations
… observations, strip scanning surveys, and Kuiper Belt Object (KBOs) astrometry to be obtained using the 24" telescope.
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Forms and Rotational States of the Nuclei of Ecliptic Comets
… are shown to have similar values in the Kuiper Belt Object (KBO) population, which is the supposed parent population for JFCs. The surface colours of JFCs are shown to match the blue end of the KBO distribution, and can be derived from the observed KBO distribution under the assumption of …
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Time series photometry of the dwarf planet Eris
… to find the period of the newly discovered Kuiper Belt Object (KBO), Eris. Eris is known to have a radius slightly larger than Pluto and an extremely high albedo of 86%, indicative of fresh surface ices. This high albedo makes it likely that the brightness variations of Eris are small and …
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Mission and System Design for In-Situ Resource Utilization in the Outer Solar System using Nuclear Propulsion Technologies
… capacity. Among the available substances in the Kuiper belt, nitrogen propellants are the worst options in terms of mission time, propellant mass, and collection time requirements. Using raw methane as propellant instead of a source of hydrogen can offer significantly higher ∆V and lower total …
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Constraints on the surface composition of Trojan asteroidsfrom near infrared (0.8-4.0 μm) spectroscopy and spectral modeling
… (e.g. H₂O, organics, silicates) as seen on main-belt asteroids and several Centaur and Kuiper Belt objects. These data are combined with previously published data to construct spectra covering the visible and near-IR (0.3-4.0 μm) for as many objects as possible. The composite spectra are analyzed …
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EXOCOMETS AT LARGE ORBITAL RADII AND THEIR INWARD TRANSPORT IN DEBRIS DISCS
… rocky and icy bodies that are confined within belts similar to the Asteroid and Kuiper belt in the Solar System. Mutual collisions within these belts grind down solids producing dust and giving rise to debris discs. Primitive asteroids and comets likely played a major role in the emergence of …
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Dust disks around hot white dwarfs and central stars of planetary nebulae
… (PN), possibly produced by collisions among Kuiper Belt-like objects.To search for more dust disks of the latter type, we have carried out a Spitzer MIPS 24 um survey of 71 hot WDs or pre-WDs, and found nine WDs with excess 24 um emission, seven of which are still central stars of planetary …
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The relationship between Centaur activity and ring formation
… to be transition objects that originate in the Kuiper belt and occupy the cis-Neptunian region before potentially becoming Jupiter-family or other short-period comets (Dones, Levison, & Duncan, 1996). Their short dynamical lifetimes are on the order of 106 years (Horner, Evans, & Bailey, 2004) …
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The origin and evolution of warm exozodiacal dust
… presence of warm habitable zone dust and cold belts of planetesimals similar to the Solar System’s Kuiper belt. Given this correlation and the short lifetime of dust grains close to the star, it is probable that exozodiacal dust originates further out in the planetary system and is transported …
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The origin and evolution of Transneptunian binaries
Transneptunian objects are icy bodies beyond the orbit of Neptune. A large fraction are found in binary pairs, up to ~30% in the Cold Classical population, which generally have components of similar size and colour on widely separated orbits. Understanding what mechanisms have lead to the formation …
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Revealing Refractory Materials on Trans-Neptunian Objects and Centaurs via Reflectance Spectroscopy
… subsequently scattered into the Trans-Neptunian Belt as a result of the early migrations of the giant planets. 174P/Echeclus, an active centaur,was observed consistently before and after its cometary outburst in 2016 to determine if any resulting surface changes would be detectable. The …
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High-resolution studies of exoplanetesimal belt formation and evolution
… within the protoplanetary system: planets, and belts of planetesimals (km-sized rocky and icy bodies). Planetesimals within belts readily collide and produce detectable levels of dust and gas, known as debris discs, around 20% of main sequence stars. Despite the ubiquity of planets and …
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Stabilitätsuntersuchungen an Asteroidenbahnen in ausgewählten Bahnresonanzen des Edgeworth-Kuiper-Gürtels
… der Stabilität von Asteroidenbahnen im Edgeworth-Kuiper-Gürtel am Beispiel der 3:5-, 4:7- und der 1:2-Bahnresonanz mit Neptun. Einen weiteren Schwerpunkt der Arbeit bildet die Untersuchung der numerischen Berechenbarkeit der Lyapunov-Zeit von Asteroidenbahnen. Ausgehend von einer allgemeinen …