51 citations · 132 across the 29 of their papers we have counts for
11 papers · 1 filter
Mechanisms and timing of carbonaceous chondrite delivery to the Earth
Francis Nimmo, Thorsten Kleine, Alessandro Morbidelli +1
The nucleosynthetic isotope signatures of meteorites and the bulk silicate Earth (BSE) indicate that Earth consists of a mixture of "carbonaceous" (CC) and "non-carbonaceous" (NC)…
The Exoplanet Edge: Planets Don't Induce Observable TTVs with a Dominant TTV Period Faster than Half their Orbital Period
Daniel A. Yahalomi, David Kipping, Eric Agol +1
Transit timing variations (TTVs) are observed for exoplanets at a range of amplitudes and periods, yielding an ostensibly degenerate forest of possible explanations. We offer some…
On the early thermal processing of planetesimals during and after the giant planet instability
A. Gkotsinas, D. Nesvorny, A. Guilbert-Lepoutre +2
Born as ice-rich planetesimals, cometary nuclei were gravitationally scattered onto their current orbits in the Kuiper Belt and the Oort Cloud during the giant planets' dynamical i…
Nitrogen Loss from Pluto's Birth to the Present Day via Atmospheric Escape, Photochemical Destruction, and Impact Erosion
Perianne E. Johnson, Leslie A. Young, David Nesvorny +1
We estimate the loss of nitrogen from Pluto over its lifetime, including the giant planet instability period, which we term the "Wild Years." We analyze the orbital migration of 53…
Catalog of Proper Orbits for 1.25 Million Main Belt Asteroids and Discovery of 136 New Collisional Families
David Nesvorny, Fernando Roig, David Vokrouhlicky +1
The proper elements of asteroids are obtained from the instantaneous orbital elements by removing periodic oscillations produced by gravitational interactions with planets. They ar…
The Dynamical Origins of the Dark Comets and a Proposed Evolutionary Track
Aster G. Taylor, Jordan K. Steckloff, Darryl Z. Seligman +5
So-called 'dark comets' are small, morphologically inactive near-Earth objects (NEOs) that exhibit nongravitational accelerations inconsistent with radiative effects. These objects…
EL meteorites do date the giant planet instability
Chrysa Avdellidou, Marco Delbo, David Nesvorny +2
In our recent work, we combined dynamical simulations, meteoritic data and thermal models as well as asteroid observations to argue that the current parent body of the EL meteorite…
NEOMOD 3: The Debiased Size Distribution of Near Earth Objects
David Nesvorny, David Vokrouhlicky, Frank Shelly +9
Our previous model (NEOMOD2) for the orbital and absolute magnitude distribution of Near Earth Objects (NEOs) was calibrated on the Catalina Sky Survey observations between 2013 an…
Terrestrial planet formation from a ring: long-term simulations accounting for the giant planet instability
J. M. Y. Woo, D. Nesvorny, J. Scora +1
The process leading to the formation of the terrestrial planet remains elusive. In a previous publication, we have shown that, if the first generation of planetesimals forms in a r…
Generation of Low-Inclination, Neptune-Crossing TNOs by Planet Nine
Konstantin Batygin, Alessandro Morbidelli, Michael E. Brown +1
The solar system's distant reaches exhibit a wealth of anomalous dynamical structure, hinting at the presence of a yet-undetected, massive trans-Neptunian body - Planet 9. Previous…
Accretion and Uneven Depletion of the Main Asteroid Belt
Rogerio Deienno, David Nesvorny, Matthew S. Clement +3
The main asteroid belt (MAB) is known to be primarily composed of objects from two distinct taxonomic classes, generically defined here as S- and C-complex. The former probably ori…