259 citations · 1.9k across the 34 of their papers we have counts for
34 papers · 1 filter
A Crater Chronology for the Jupiter's Asteroids
S. Marchi, D. Nesvorný, D. Vokrouhlický +2
We present a new crater chronology for Jupiter's Trojan asteroids. This tool can be used to interpret the collisional history of the bodies observed by NASA's Lucy mission. The Luc…
A race against the clock: Constraining the timing of cometary bombardment relative to Earth's growth
Sarah Joiret, Sean N. Raymond, Guillaume Avice +3
Comets are considered a potential source of inner solar system volatiles, but the timing of this delivery relative to that of Earth's accretion is still poorly understood. Measurem…
The Properties and Origins of Kuiper Belt Object Arrokoth's Large Mounds
S. A. Stern, O. L. White, Wm. Grundy +10
We report on a study of the mounds that dominate the appearance of Kuiper Belt Object (KBO) (486958) Arrokoth's larger lobe, named Wenu. We compare the geological context of these…
Radial Distribution of Distant Trans-Neptunian Objects Points to Sun's Formation in a Stellar Cluster
David Nesvorny, Pedro Bernardinelli, David Vokrouhlicky +1
The Scattered Disk Objects (SDOs) are a population of trans-Neptunian bodies with semimajor axes au and perihelion distances au. The detached S…
Impact Rates in the Outer Solar System
David Nesvorny, Luke Dones, Mario De Pra +2
Previous studies of cometary impacts in the outer Solar System used the spatial distribution of ecliptic comets (ECs) from dynamical models that assumed ECs began on low-inclinatio…
The Collisional Evolution of the Primordial Kuiper Belt, Its Destabilized Population, and the Trojan Asteroids
William Bottke, David Vokrouhlicky, Raphael Marshall +6
The tumultuous early era of outer solar system evolution culminated when Neptune migrated across the primordial Kuiper belt (PKB) and triggered a dynamical instability among the gi…
NEOMOD: A New Orbital Distribution Model for Near Earth Objects
David Nesvorny, Rogerio Deienno, William F. Bottke +10
Near Earth Objects (NEOs) are a transient population of small bodies with orbits near or in the terrestrial planet region. They represent a mid-stage in the dynamical cycle of aste…
Early Bombardment of the Moon: Connecting the Lunar Crater Record to the Terrestrial Planet Formation
David Nesvorny, Fernando V. Roig, David Vokrouhlicky +4
The lunar crater record features basins. The radiometric dating of Apollo samples indicates that the Imbrium basin formed relatively late -- from the planet formation per…
TOI-2525 b and c: A pair of massive warm giant planets with a strong transit timing variations revealed by TESS
Trifon Trifonov, Rafael Brahm, Andres Jordan +44
TOI-2525 is a K-type star with an estimated mass of M = 0.849 M and radius of R = 0.785 R observed by the TESS mission in 22…
The gateway from Centaurs to Jupiter-family Comets: thermal and dynamical evolution
Aurélie Guilbert-Lepoutre, Anastasios Gkotsinas, Sean N. Raymond +1
It was recently proposed that there exists a "gateway" in the orbital parameter space through which Centaurs transition to Jupiter-family Comets (JFCs). Further studies have implie…
Formation of Lunar Basins from Impacts of Leftover Planetesimals
David Nesvorny, Fernando V. Roig, David Vokrouhlicky +4
The Moon holds important clues to the early evolution of the Solar System. Some 50 impact basins (crater diameter D>300 km) have been recognized on the lunar surface, implying that…
Implications of Jupiter Inward Gas-Driven Migration for the Inner Solar System
Rogerio Deienno, Andre Izidoro, Alessandro Morbidelli +2
The migration history of Jupiter in the sun's natal disk remains poorly constrained. Here we consider how Jupiter's migration affects small-body reservoirs and how this constrains…
HD 28109 hosts a trio of transiting Neptunian planets including a near-resonant pair, confirmed by ASTEP from Antarctica
Georgina Dransfield, Amaury H. M. J. Triaud, Tristan Guillot +28
We report on the discovery and characterisation of three planets orbiting the F8 star HD~28109, which sits comfortably in \tess's continuous viewing zone. The two outer planets hav…
A re-assessment of the Kuiper belt size distribution for sub-kilometer objects, revealing collisional equilibrium at small sizes
A. Morbidelli, D. Nesvorny, W. F. Bottke +1
We combine several constraints provided by the crater records on Arrokoth and the worlds of the Pluto system to compute the size-frequency distribution (SFD) of the crater producti…
Very Slow Rotators from Tidally Synchronized Binaries
D. Nesvorny, D. Vokrouhlicky, W. F. Bottke +2
A recent examination of K2 lightcurves indicates that ~15% of Jupiter Trojans have very slow rotation (spin periods Ps>100 h). Here we consider the possibility that these bodies fo…
SPH/N-body simulations of small (D = 10 km) asteroidal breakups and improved parametric relations for Monte-Carlo collisional models
P. Ševeček, M. Brož, D. Nesvorný +4
We report on our study of asteroidal breakups, i.e. fragmentations of targets, subsequent gravitational reaccumulation and formation of small asteroid families. We focused on paren…
The timeline of the Lunar bombardment - revisited
A. Morbidelli, D. Nesvorny, V. Laurenz +5
The timeline of the lunar bombardment in the first Gy of the Solar System remains unclear. Some basin-forming impacts occurred 3.9-3.7Gy ago. Many other basins formed before, but t…
Dynamical Origin and Terrestrial Impact Flux of Large Near-Earth Asteroids
D. Nesvorny, F. Roig
Dynamical models of the asteroid delivery from the main belt suggest that the current impact flux of diameter D>10 km asteroids on the Earth is 0.5-1 per Gyr. Studies of the Near-E…
Origin and Evolution of Short-Period Comets
D. Nesvorny, D. Vokrouhlicky, L. Dones +3
Comets are icy objects that orbitally evolve from the trans-Neptunian region (the Kuiper belt and beyond) into the inner Solar System, where they are heated by solar radiation and…
All planetesimals born near the Kuiper Belt formed as binaries
Wesley C. Fraser, Michele t. Bannister, Rosemary E. Pike +19
The cold classical Kuiper belt objects have low inclinations and eccentricities and are the only Kuiper belt population suspected to have formed in situ. Compared with the dynamica…
Detection of the YORP Effect for Small Asteroids in the Karin Cluster
Valerio Carruba, David Nesvorný, David Vokrouhlický
The Karin cluster is a young asteroid family thought to have formed only ~My ago. The young age can be demonstrated by numerically integrating the orbits of Karin clus…
Dynamics and Transit Variations of Resonant Exoplanets
D. Nesvorny, D. Vokrouhlicky
The Transit Timing Variations (TTVs) are deviations of the measured mid-transit times from the exact periodicity. One of the most interesting causes of TTVs is the gravitational in…
Spectral variability on primitive asteroids of the Themis and Beagle families: space weathering effects or parent body heterogeneity?
S. Fornasier, C. Lantz, D. Perna +3
Themis is an old and statistically robust asteroid family populating the outer main belt, and resulting from a catastrophic collision that took place 2.51.0 Gyr ago. Within th…
The Hunt for Exomoons with Kepler (HEK): V. A Survey of 41 Planetary Candidates for Exomoons
David M. Kipping, Allan R. Schmitt, Chelsea X. Huang +5
We present a survey of 41 Kepler Objects of Interest (KOIs) for exomoons using Bayesian photodynamics, more than tripling the number of KOIs surveyed with this technique. We find n…