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ARCHITECTURE OF PLANETARY SYSTEMS BASED ON KEPLER DATA: NUMBER OF PLANETS AND COPLANARITY
We investigated the underlying architecture of planetary s ystems by deriving the distribution of planet multiplicity (number of planets) and the distribution of orbital inclinations based on theExpand
Large Longitude Libration of Mercury Reveals a Molten Core
TLDR
Observations of radar speckle patterns tied to the rotation of Mercury establish that the planet occupies a Cassini state with obliquity of 2.11 ± 0.1 arc minutes, and indicate that the mantle of Mercury is decoupled from a core that is at least partially molten. Expand
Radar Imaging of Binary Near-Earth Asteroid (66391) 1999 KW4
TLDR
High-resolution radar images reveal near-Earth asteroid (66391) 1999 KW4 to be a binary system that is dominated by an equatorial ridge at the object's potential-energy minimum and has exotic physical and dynamical properties. Expand
The curious case of Mercury's internal structure
United States. National Aeronautics and Space Administration (NASA MESSENGER Participating Scientist grant NNX07AR77G)
Gravity Field and Internal Structure of Mercury from MESSENGER
TLDR
The results point to an interior structure that differs from those of the other terrestrial planets: the density of the planet's solid outer shell suggests the existence of a deep reservoir of high-density material, possibly an Fe-S layer. Expand
Orbit and bulk density of the OSIRIS-REx target Asteroid (101955) Bennu
The target asteroid of the OSIRIS-REx asteroid sample return mission, (101955) Bennu (formerly 1999 RQ 36), is a half-kilometer near-Earth asteroid with an extraordinarily well constrained orbit. AnExpand
Shape model and surface properties of the OSIRIS-REx target Asteroid (101955) Bennu from radar and lightcurve observations
We determine the three-dimensional shape of near-Earth Asteroid (101955) Bennu based on radar images and optical lightcurves. Bennu was observed both in 1999 at its discovery apparition, and in 2005Expand
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
Photometric Survey of Binary Near-Earth Asteroids
Abstract Photometric data on 17 binary near-Earth asteroids (15 of them are certain detections, two are probables) were analysed and characteristic properties of the near-Earth asteroid (NEA) binaryExpand
Binary Asteroids in the Near-Earth Object Population
TLDR
This system and other binary near-Earth asteroids have spheroidal primaries spinning near the breakup point for strengthless bodies, suggesting that the binaries formed by spin-up and fission, probably as a result of tidal disruption during close planetary encounters, may be binary systems. Expand
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