Título:
Morphology of ejecta features from the impact on asteroid Dimorphos
Otros títulos:
Coordinador:
Director:
Compilador:
Autor:
Ferrari, Fabio
Panicucci, Paolo
Merisio, Gianmario
Tancredi Machado, Gonzalo José
Panicucci, Paolo
Merisio, Gianmario
Tancredi Machado, Gonzalo José
Tutor:
Tipo de documento:
Artículo
Editor:
Palabras clave:
Aerospace engineering
Asteroids, comets and Kuiper belt
Astronomy and astrophysics
Rings and moons
Asteroids, comets and Kuiper belt
Astronomy and astrophysics
Rings and moons
Descriptores:
Año de publicación:
2025
Contenido:
Resumen:
Hypervelocity impacts play a significant role in the evolution of asteroids, causing material to be ejected and partially reaccreted. However, the dynamics and evolution of ejected material in a binary asteroid system have never been
observed directly. Observations of Double Asteroid Redirection Test (DART) impact on asteroid Dimorphos have revealed features on a scale of thousands of kilometers, including curved ejecta streams and a tail bifurcation originating from the Didymos system. Here we show that these features result naturally from the dynamical interaction of the ejecta with the binary system and solar radiation pressure. These mechanisms may be used to constrain the orbit of a secondary body, or to investigate the binary nature of an asteroid. Also, they may reveal breakup or fission events in active asteroids, and help determine the asteroid’s properties following an impact event. In the case of DART, our findings suggest that Dimorphos is a very weak, rubble-pile asteroid, with an ejecta mass estimated to be in the range of (1.1-5.5)×107 kg.
Descripción:
En este artículo participan más de treinta autores.
metadata.articulos.dc.description.uri:
Editorial:
Nature
EN:
Nature Communications, 2025, 16: 1601.
Financiadores:
ANII: FCE_1_2019_1_156451
CSIC: I+D_2022
CSIC: I+D_2022
Citación:
Ferrari, F, Panicucci, P, Merisio, G, Tancredi Machado, G [y otros autores]. "Morphology of ejecta features from the impact on asteroid Dimorphos". Nature Communications. [en línea] 2025, 16: 1601. 13 h. DOI: 10.1038/s41467-025-56551-0
Citación:
metadata.articulos.cc.license.name:
ISBN:
e-ISBN:
ISSN:
2041-1723
ISMN:
Otros identificadores:
Cobertura geográfica:
Cobertura temporal:
Departamento académico:
Grupo de investigación:
Licencia:
Licencia Creative Commons Atribución (CC - By 4.0)
Colecciones:
| Ficheros | Descripción | Tamaño | Formato | ||
|---|---|---|---|---|---|
| 10.1038.s41467-025-56551-0.pdf | — | 7.78 MB | Adobe PDF |