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Cassini Encounters Enceladus: Background and the Discovery of a South Polar Hot Spot
Cassini's Composite Infrared Spectrometer (CIRS) detected 3 to 7 gigawatts of thermal emission from the south polar troughs at temperatures up to 145 kelvin or higher, making Enceladus only the third known solid planetary body—after Earth and Io—that is sufficiently geologically active for its internal heat to be detected by remote sensing. Expand
Systematic biases in radiometric diameter determinations
Abstract Radiometric diameters and albedos of asteroids and other Solar System bodies have generally been determined with the aid of a standard thermal model, which assumes a smooth nonrotatingExpand
Voyager 2 at Neptune: Imaging Science Results
Voyager 2 images of Neptune reveal a windy planet characterized by bright clouds of methane ice suspended in an exceptionally clear atmosphere above a lower deck of hydrogen sulfide or ammonia ices.Expand
High albedos of low inclination Classical Kuiper belt objects
Abstract We present observations of thermal emission from fifteen transneptunian objects (TNOs) made using the Spitzer Space Telescope . Thirteen of the targets are members of the ClassicalExpand
The Pluto system: Initial results from its exploration by New Horizons
The New Horizons encounter revealed that Pluto displays a surprisingly wide variety of geological landforms, including those resulting from glaciological and surface-atmosphere interactions as well as impact, tectonic, possible cryovolcanic, and mass-wasting processes. Expand
The Cosmic Origins Spectrograph
The Cosmic Origins Spectrograph (COS) is a moderate-resolution spectrograph with unprecedented sensitivity that was installed into the Hubble Space Telescope (HST) in 2009 May, during HST ServicingExpand
Radiometry and a thermal modeling of asteroids
The steps required to determine a radiometric diameter of an asteroid from observations of its visual and thermal radiation are described together with thermal models required to predict the emissionExpand
A rough-surface thermophysical model for airless planets
Abstract This paper describes the disk-integrated thermal emission from a rough planetary surface with nonzero thermal inertia. I use a model that determines diurnal temperatures in spherical-sectionExpand
Shear heating as the origin of the plumes and heat flux on Enceladus
It is shown that the most likely explanation for the heat and vapour production is shear heating by tidally driven lateral (strike-slip) fault motion with displacement of ∼0.5 m over a tidal period, suggesting that the ice shell is decoupled from the silicate interior by a subsurface ocean. Expand
Physical Properties of Kuiper Belt and Centaur Objects: Constraints from the Spitzer Space Telescope
Detecting heat from minor planers in the outer solar system is challenging, yet it is the most efficient means for constraining the albedos and sizes of Kuiper belt objects (KBOs) and their progeny,Expand