Fast boulder fracturing by thermal fatigue detected on stony asteroids

A Lucchetti, S Cambioni, R Nakano… - Nature …, 2024 - nature.com
Spacecraft observations revealed that rocks on carbonaceous asteroids, which constitute
the most numerous class by composition, can develop millimeter-to-meter-scale fractures …

Fine-regolith production on asteroids controlled by rock porosity

S Cambioni, M Delbo, G Poggiali, C Avdellidou… - Nature, 2021 - nature.com
Spacecraft missions have observed regolith blankets of unconsolidated subcentimetre
particles on stony asteroids,–. Telescopic data have suggested the presence of regolith …

Toward a population synthesis of disks and planets-II. Confronting disk models and observations at the population level

A Emsenhuber, R Burn, J Weder, K Monsch… - Astronomy & …, 2023 - aanda.org
Aims. We want to find the distribution of initial conditions that best reproduces disc
observations at the population level. Methods. We first ran a parameter study using a 1D …

The surface of (16) Psyche from thermal emission and polarization mapping

K de Kleer, S Cambioni… - The Planetary Science …, 2021 - iopscience.iop.org
The asteroid (16) Psyche is the largest of the M-type asteroids, which have been
hypothesized to be the cores of disrupted planetesimals and the parent bodies of the iron …

Zero-phase angle asteroid taxonomy classification using unsupervised machine learning algorithms

M Colazo, A Alvarez-Candal, R Duffard - Astronomy & Astrophysics, 2022 - aanda.org
Context. We are in an era of large catalogs and, thus, statistical analysis tools for large data
sets, such as machine learning, play a fundamental role. One example of such a survey is …

Realistic on-the-fly outcomes of planetary collisions: machine learning applied to simulations of giant impacts

S Cambioni, E Asphaug, A Emsenhuber… - The Astrophysical …, 2019 - iopscience.iop.org
Planet formation simulations are capable of directly integrating the evolution of hundreds to
thousands of planetary embryos and planetesimals as they accrete pairwise to become …

Global mapping of fragmented rocks on the Moon with a neural network: Implications for the failure mode of rocks on airless surfaces

O Rüsch, VT Bickel - The Planetary Science Journal, 2023 - iopscience.iop.org
Failure modes of lunar boulders depend both on rheology and the erosion agents acting in
the lunar surface environment. Here, we address the failure modes of lunar boulders and …

The heterogeneous surface of asteroid (16) Psyche

S Cambioni, K de Kleer… - Journal of Geophysical …, 2022 - Wiley Online Library
Abstract Main‐belt asteroid (16) Psyche is the largest M‐type asteroid, a class of object
classically thought to be the metal cores of differentiated planetesimals and the parent …

Thermophysical modelling and parameter estimation of small Solar system bodies via data assimilation

M Hamm, I Pelivan, M Grott… - Monthly Notices of the …, 2020 - academic.oup.com
Deriving thermophysical properties such as thermal inertia from thermal infrared
observations provides useful insights into the structure of the surface material on planetary …

Full‐Field Modeling of Heat Transfer in Asteroid Regolith: 2. Effects of Porosity

AJ Ryan, D Pino Muñoz, M Bernacki… - Journal of …, 2022 - Wiley Online Library
The thermal conductivity of granular planetary regolith is strongly dependent on the porosity,
or packing density, of the regolith particles. However, existing models for regolith thermal …