23 citations · 80 across the 12 of their papers we have counts for
6 papers · 1 filter
Collision Chains among the Terrestrial Planets. III. Formation of the Moon
Erik Asphaug, Alexandre Emsenhuber, Saverio Cambioni +2
In the canonical model of Moon formation, a Mars-sized protoplanet "Theia" collides with proto-Earth at close to their mutual escape velocity and a common impact angl…
Collision Chains among the Terrestrial Planets. II. An Asymmetry between Earth and Venus
Alexandre Emsenhuber, Erik Asphaug, Saverio Cambioni +2
During the late stage of terrestrial planet formation, hit-and-run collisions are about as common as accretionary mergers, for expected velocities and angles of giant impacts. Aver…
Graze-and-Merge Collisions under External Perturbers
Alexandre Emsenhuber, Erik Asphaug
Graze-and-merge collisions (GMCs) are common multi-step mergers occurring in low-velocity off-axis impacts between similar sized planetary bodies. The first impact happens at somew…
Fate of the runner in hit-and-run collisions
Alexandre Emsenhuber, Erik Asphaug
In similar-sized planetary collisions, a significant part of the impactor often misses the target and continues downrange. We follow the dynamical evolution of "runners" from giant…
Boulder Stranding in Ejecta Launched by an Impact Generated Seismic Pulse
Esteban Wright, Alice C. Quillen, Juliana South +6
We consider how an impact generated seismic pulse affects the surface of an asteroid distant from the impact site. With laboratory experiments on dry polydisperse gravel mixtures,…
Signatures of hit and run collisions
Erik Asphaug
Terrestrial planets grew in a series of similar-sized collisions that swept up most of the next-largest bodies. Theia was accreted by the Earth to form the Moon according to the th…