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Masses of the Kepler-419 Planets from Transit Timing Variations Analysis
X. Saad-Olivera, A. Costa de Souza, F. Roig +1
We perform dynamical fits to the Transit Timing Variations (TTVs) of Kepler-419b. The TTVs from 17 Kepler quarters are obtained from Holczer et al (2016, ApJS 225,9). The dynamical…
Evidence for Very Early Migration of the Solar System Planets from the Patroclus-Menoetius binary Jupiter Trojan
David Nesvorny, David Vokrouhlicky, William F. Bottke +1
The orbital distribution of trans-Neptunian objects provides strong evidence for the radial migration of Neptune. The outer planets' orbits are thought to have become unstable duri…
The excitation of a primordial cold asteroid belt as an outcome of the planetary instability
Rogerio Deienno, Andre Izidoro, Alessandro Morbidelli +3
The main asteroid belt (MB) is low in mass but dynamically excited. Here we propose a new mechanism to excite the MB during the giant planet ('Nice model') instability, which is ex…
Dynamical Evolution of the Early Solar System
David Nesvorny
Several properties of the Solar System, including the wide radial spacing of the giant planets, can be explained if planets radially migrated by exchanging orbital energy and momen…
Debiased orbit and absolute-magnitude distributions for near-Earth objects
Mikael Granvik, Alessandro Morbidelli, Robert Jedicke +6
The debiased absolute-magnitude and orbit distributions as well as source regions for near-Earth objects (NEOs) provide a fundamental frame of reference for studies of individual N…
Bi-lobed Shape of Comet 67P from a Collapsed Binary
David Nesvorny, Joel Parker, David Vokrouhlicky
The Rosetta spacecraft observations revealed that the nucleus of comet 67P/Churyumov-Gerasimenko consists of two similarly sized lobes connected by a narrow neck. Here we evaluate…