Debris disks: structure, composition, and variability

AM Hughes, G Duchêne… - Annual Review of …, 2018‏ - annualreviews.org
Debris disks are tenuous, dust-dominated disks commonly observed around stars over a
wide range of ages. Those around main sequence stars are analogous to the Solar System's …

Challenges in planet formation

A Morbidelli, SN Raymond - Journal of Geophysical Research …, 2016‏ - Wiley Online Library
Over the past two decades, large strides have been made in the field of planet formation. Yet
fundamental questions remain. Here we review our state of understanding of five …

Breaking the chains: hot super-Earth systems from migration and disruption of compact resonant chains

A Izidoro, M Ogihara, SN Raymond… - Monthly Notices of …, 2017‏ - academic.oup.com
Abstract 'Hot super-Earths'(or 'mini-Neptunes') between one and four times Earth's size with
period shorter than 100 d orbit 30–50 per cent of Sun-like stars. Their orbital configuration …

The origin of the Moon within a terrestrial synestia

SJ Lock, ST Stewart, MI Petaev… - Journal of …, 2018‏ - Wiley Online Library
The giant impact hypothesis remains the leading theory for lunar origin. However, current
models struggle to explain the Moon's composition and isotopic similarity with Earth. Here …

Making the Moon from a fast-spinning Earth: A giant impact followed by resonant despinning

M Ćuk, ST Stewart - science, 2012‏ - science.org
A common origin for the Moon and Earth is required by their identical isotopic composition.
However, simulations of the current giant impact hypothesis for Moon formation find that …

The exoplanet radius valley from gas-driven planet migration and breaking of resonant chains

A Izidoro, HE Schlichting, A Isella… - The Astrophysical …, 2022‏ - iopscience.iop.org
The size frequency distribution of exoplanet radii between 1 and 4R⊕ is bimodal with peaks
at∼ 1.4 R⊕ and∼ 2.4 R⊕, and a valley at∼ 1.8 R⊕. This radius valley separates two …

Spacing of Kepler planets: sculpting by dynamical instability

B Pu, Y Wu - The Astrophysical Journal, 2015‏ - iopscience.iop.org
We study the orbital architecture of multi-planet systems detected by the Kepler transit
mission using N-body simulations, focusing on the orbital spacing between adjacent planets …

Collisional formation of top-shaped asteroids and implications for the origins of Ryugu and Bennu

P Michel, RL Ballouz, OS Barnouin, M Jutzi… - Nature …, 2020‏ - nature.com
Asteroid shapes and hydration levels can serve as tracers of their history and origin. For
instance, the asteroids (162173) Ryugu and (101955) Bennu have an oblate spheroidal …

Widespread mixing and burial of Earth's Hadean crust by asteroid impacts

S Marchi, WF Bottke, LT Elkins-Tanton, M Bierhaus… - Nature, 2014‏ - nature.com
The history of the Hadean Earth (∼ 4.0–4.5 billion years ago) is poorly understood because
few known rocks are older than∼ 3.8 billion years old. The main constraints from this era …

Bennu's near-Earth lifetime of 1.75 million years inferred from craters on its boulders

RL Ballouz, KJ Walsh, OS Barnouin, DN DellaGiustina… - Nature, 2020‏ - nature.com
An asteroid's history is determined in large part by its strength against collisions with other
objects,(impact strength). Laboratory experiments on centimetre-scale meteorites have been …