• Publications
  • Influence
An Archaean heavy bombardment from a destabilized extension of the asteroid belt
It is reported that the Late Heavy Bombardment lasted much longer than previously thought, with most late impactors coming from the E belt, an extended and now largely extinct portion of the asteroid belt between 1.7 and 2.1 astronomical units from Earth. Expand
Oort cloud and Scattered Disc formation during a late dynamical instability in the Solar System
Abstract One of the outstanding problems of the dynamical evolution of the outer Solar System concerns the observed population ratio between the Oort cloud (OC) and the Scattered Disc (SD):Expand
Embedded star clusters and the formation of the Oort Cloud
Abstract Observations suggest most stars originate in clusters embedded in giant molecular clouds [Lada, C.J., Lada, E.A., 2003. Annu. Rev. Astron. Astrophys. 41, 57–115]. Our Solar System likelyExpand
Constructing the secular architecture of the solar system. I. The giant planets
Using numerical simulations, we show that smooth migration of the giant planets through a planetesimal disk leads to an orbital architecture that is inconsistent with the current one: the resultingExpand
Simulations of planet migration driven by planetesimal scattering
Abstract Evidence has mounted for some time that planet migration is an important part of the formation of planetary systems, both in the Solar System [Malhotra, R., 1993. Nature 365, 819–821] and inExpand
Evidence from the asteroid belt for a violent past evolution of Jupiter's orbit
We use the current orbital structure of large (>50 km) asteroids in the main asteroid belt to constrain the evolution of the giant planets when they migrated from their primordial orbits to theirExpand
Origin and Evolution of the Cometary Reservoirs
Comets have three known reservoirs: the roughly spherical Oort Cloud (for long-period comets), the flattened Kuiper Belt (for ecliptic comets), and, surprisingly, the asteroid belt (for main-beltExpand
Capture of the Sun's Oort Cloud from Stars in Its Birth Cluster
Numerical simulations show that the Sun captured comets from other stars while it was in its birth cluster, implying that a substantial fraction of the Oort cloud comets, perhaps exceeding 90%, are from the protoplanetary disks of other stars. Expand
Stability limits for the quasi-satellite orbit
An asteroid moving around the Sun having approximately the same mean motion and mean longitude as a planet, but a different eccentricity, circles the planet like a retrograde satellite even when theExpand
The Formation of Mars: Building Blocks and Accretion Time Scale
In this review paper I address the current knowledge of the formation of Mars, focusing on its primary constituents, its formation time scale and its small mass compared to Earth and Venus. I argueExpand