211 citations · 664 across the 13 of their papers we have counts for
14 papers
Large planets may not form fractionally large moons
Miki Nakajima, Hidenori Genda, Erik Asphaug +1
One of the unique aspects of Earth is that it has a fractionally large Moon, which is thought to have formed from a Moon-forming disk generated by a giant impact. The Moon stabiliz…
Geophysical Evolution During Rocky Planet Formation
Tim Lichtenberg, Laura K. Schaefer, Miki Nakajima +1
Progressive astronomical characterization of planet-forming disks and rocky exoplanets highlight the need for increasing interdisciplinary efforts to understand the birth and life…
Ricochets on Asteroids II: Sensitivity of laboratory experiments of low velocity grazing impacts on substrate grain size
Esteban Wright, Alice C. Quillen, Paul Sanchez +4
We compare low velocity impacts that ricochet with the same impact velocity and impact angle into granular media with similar bulk density, porosity and friction coefficient but di…
Origin of the Moon
Robin M. Canup, Kevin Righter, Nicolas Dauphas +8
The Earth-Moon system is unusual in several respects. The Moon is roughly 1/4 the radius of the Earth - a larger satellite-to-planet size ratio than all known satellites other than…
Accretion of Ornamental Equatorial Ridges on Pan, Atlas and Daphnis
Alice C. Quillen, Fatima Zaidouni, Miki Nakajima +1
We explore scenarios for the accretion of ornamental ridges on Saturn's moons Pan, Atlas, and Daphnis from material in Saturn's rings. Accretion of complex shaped ridges from ring…
Scaling laws for the geometry of an impact-induced magma ocean
Miki Nakajima, Gregor J. Golabek, Kai Wünnemann +6
Here, we develop scaling laws for (1) the distribution of impact-induced heat within the mantle and (2) shape of the impact-induced melt based on more than 100 smoothed particle hy…
Ricochets on Asteroids: Experimental study of low velocity grazing impacts into granular media
Esteban Wright, Alice Quillen, Juiliana South +6
Spin off events and impacts can eject boulders from an asteroid surface and rubble pile asteroids can accumulate from debris following a collision between large asteroids. These pr…
Excitation of Tumbling in Phobos and Deimos
Alice C. Quillen, Mckenzie Lane, Miki Nakajima +1
Mass-spring model simulations are used to investigate past spin states of a viscoelastic Phobos and Deimos. From an initially tidally locked state, we find crossing of a spin-orbit…
Inefficient volatile loss from the Moon-forming disk: reconciling the giant impact hypothesis and a wet Moon
Miki Nakajima, David J. Stevenson
The Earth's Moon is thought to have formed from a circumterrestrial disk generated by a giant impact between the proto-Earth and an impactor approximately 4.5 billion years ago. Si…
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,…
Near/Far Side Asymmetry in the Tidally Heated Moon
Alice C. Quillen, Larkin Martini, Miki Nakajima
Using viscoelastic mass spring model simulations to track heat distribution inside a tidally perturbed body, we measure the asymmetry of heating in the crust of a spin synchronous…
Formation, stratification, and mixing of the cores of Earth and Venus
Seth A. Jacobson, David C. Rubie, John Hernlund +2
Earth possesses a persistent, internally-generated magnetic field, whereas no trace of a dynamo has been detected on Venus, at present or in the past, although a high surface tempe…
Melting and Mixing States of the Earth's Mantle after the Moon-Forming Impact
Miki Nakajima, David J. Stevenson
The Earth's Moon is thought to have formed by an impact between the Earth and an impactor around 4.5 billion years ago. This impact could have been so energetic that it could have…
Investigation of the Initial State of the Moon-Forming Disk: Bridging SPH Simulations and Hydrostatic Models
Miki Nakajima, David J. Stevenson
According to the standard giant impact hypothesis, the Moon formed from a partially vaporized disk generated by a collision between the proto Earth and a Mars sized impactor. The i…