Evidence for multi-fragmentation and mass shedding of boulders on rubble-pile binary asteroid system (65803) Didymos
Este artículo fue escrito por más de cincuenta autores
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| Language: | English |
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2024
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| Online Access: | https://hdl.handle.net/20.500.12008/48831 |
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| _version_ | 1868890175921192960 |
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| author | Pajola, M. |
| author2 | Tusberti, F. Lucchetti, A. Tancredi Machado, Gonzalo José |
| author2_role | author author author |
| author_browse | Lucchetti, A. Pajola, M. Tancredi Machado, Gonzalo José Tusberti, F. |
| author_facet | Pajola, M. Tusberti, F. Lucchetti, A. Tancredi Machado, Gonzalo José |
| author_role | author |
| collection | COLIBRI |
| dc.contributor.none.fl_str_mv | Pajola M. Tusberti F. Lucchetti A. Tancredi Machado Gonzalo José, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Física. |
| dc.creator.none.fl_str_mv | Pajola, M. Tusberti, F. Lucchetti, A. Tancredi Machado, Gonzalo José |
| dc.date.none.fl_str_mv | 2024 2025-03-28T14:53:13Z 2025-03-28T14:53:13Z |
| dc.format.none.fl_str_mv | 13 h application/pdf |
| dc.identifier.none.fl_str_mv | Pajola, M, Tusberti, F, Lucchetti, A [y otros autores]. "Evidence for multi-fragmentation and mass shedding of boulders on rubble-pile binary asteroid system (65803) Didymos". Nature Communications. [en línea] 2024, 15: 6205. 13 h. DOI: 10.1038/s41467-024-50148-9 2041-1723 https://hdl.handle.net/20.500.12008/48831 10.1038/s41467-024-50148-9 |
| dc.language.none.fl_str_mv | en eng |
| dc.publisher.none.fl_str_mv | Nature |
| dc.relation.none.fl_str_mv | Nature Communications, 2024, 15: 6205 |
| dc.rights.none.fl_str_mv | info:eu-repo/semantics/openAccess Licencia Creative Commons Atribución (CC - By 4.0) |
| dc.source.none.fl_str_mv | reponame:COLIBRI instname:Universidad de la República instacron:Universidad de la República |
| dc.subject.none.fl_str_mv | Asteroids, comets and Kuiper belt Geomorphology Structural geology |
| dc.title.none.fl_str_mv | Evidence for multi-fragmentation and mass shedding of boulders on rubble-pile binary asteroid system (65803) Didymos |
| dc.type.none.fl_str_mv | Artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| description | Este artículo fue escrito por más de cincuenta autores |
| eu_rights_str_mv | openAccess |
| format | article |
| id | anni_b9da35bdcc8f742318e6f4fcc6f2bf0c |
| identifier_str_mv | Pajola, M, Tusberti, F, Lucchetti, A [y otros autores]. "Evidence for multi-fragmentation and mass shedding of boulders on rubble-pile binary asteroid system (65803) Didymos". Nature Communications. [en línea] 2024, 15: 6205. 13 h. DOI: 10.1038/s41467-024-50148-9 2041-1723 10.1038/s41467-024-50148-9 |
| instacron_str | Universidad de la República |
| institution | Universidad de la República |
| instname_str | Universidad de la República |
| language | eng |
| language_invalid_str_mv | en |
| network_acronym_str | anni |
| network_name_str | oai-lr-anni |
| oai_identifier_str | oai:colibri.udelar.edu.uy:20.500.12008/48831 |
| publishDate | 2024 |
| publishDateSort | 2024 |
| publisher.none.fl_str_mv | Nature |
| reponame_str | COLIBRI |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | Licencia Creative Commons Atribución (CC - By 4.0) |
| spelling | Evidence for multi-fragmentation and mass shedding of boulders on rubble-pile binary asteroid system (65803) DidymosPajola, M.Tusberti, F.Lucchetti, A.Tancredi Machado, Gonzalo JoséAsteroids, comets and Kuiper beltGeomorphologyStructural geologyEste artículo fue escrito por más de cincuenta autoresDatos disponibles en: https://doi.org/10.1038/s41467-024-50148-9Asteroids smaller than 10 km are thought to be rubble piles formed from the reaccumulation of fragments produced in the catastrophic disruption of parent bodies. Ground-based observations reveal that some of these asteroids are today binary systems, in which a smaller secondary orbits a larger primary asteroid. However, how these asteroids became binary systems remains unclear. Here, we report the analysis of boulders on the surface of the stony asteroid (65803) Didymos and its moonlet, Dimorphos, from data collected by the NASA DART mission. The size-frequency distribution of boulders larger than 5 m on Dimorphos and larger than 22.8 m on Didymos confirms that both asteroids are piles of fragments produced in the catastrophic disruption of their progenitors. Dimorphos boulders smaller than 5 m have size best-fit by a Weibull distribution, which we attribute to a multi-phase fragmentation process either occurring during coalescence or during surface evolution. The density per km2 of Dimorphos boulders ≥1 m is 2.3x with respect to the one obtained for (101955) Bennu, while it is 3.0x with respect to (162173) Ryugu. Such values increase once Dimorphos boulders ≥5 m are compared with Bennu (3.5x), Ryugu (3.9x) and (25143) Itokawa (5.1x). This is of interest in the context of asteroid studies because it means that contrarily to the single bodies visited so far, binary systems might be affected by subsequential fragmentation processes that largely increase their block density per km2 . Direct comparison between the surface distribution and shapes of the boulders on Didymos and Dimorphos suggest that the latter inherited its material from the former. This finding supports the hypothesis that some asteroid binary systems form through the spin up and mass shedding of a fraction of the primary asteroid.NaturePajola M.Tusberti F.Lucchetti A.Tancredi Machado Gonzalo José, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Física.2025-03-28T14:53:13Z2025-03-28T14:53:13Z2024Artículoinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion13 happlication/pdfPajola, M, Tusberti, F, Lucchetti, A [y otros autores]. "Evidence for multi-fragmentation and mass shedding of boulders on rubble-pile binary asteroid system (65803) Didymos". Nature Communications. [en línea] 2024, 15: 6205. 13 h. DOI: 10.1038/s41467-024-50148-92041-1723https://hdl.handle.net/20.500.12008/4883110.1038/s41467-024-50148-9reponame:COLIBRIinstname:Universidad de la Repúblicainstacron:Universidad de la RepúblicaenengNature Communications, 2024, 15: 6205Las obras depositadas en el Repositorio se rigen por la Ordenanza de los Derechos de la Propiedad Intelectual de la Universidad de la República.(Res. Nº 91 de C.D.C. de 8/III/1994 – D.O. 7/IV/1994) y por la Ordenanza del Repositorio Abierto de la Universidad de la República (Res. Nº 16 de C.D.C. de 07/10/2014)info:eu-repo/semantics/openAccessLicencia Creative Commons Atribución (CC - By 4.0)oai:colibri.udelar.edu.uy:20.500.12008/488312026-04-14T10:10:45Z |
| spellingShingle | Evidence for multi-fragmentation and mass shedding of boulders on rubble-pile binary asteroid system (65803) Didymos Pajola, M. Asteroids, comets and Kuiper belt Geomorphology Structural geology |
| status_str | publishedVersion |
| title | Evidence for multi-fragmentation and mass shedding of boulders on rubble-pile binary asteroid system (65803) Didymos |
| title_full | Evidence for multi-fragmentation and mass shedding of boulders on rubble-pile binary asteroid system (65803) Didymos |
| title_fullStr | Evidence for multi-fragmentation and mass shedding of boulders on rubble-pile binary asteroid system (65803) Didymos |
| title_full_unstemmed | Evidence for multi-fragmentation and mass shedding of boulders on rubble-pile binary asteroid system (65803) Didymos |
| title_short | Evidence for multi-fragmentation and mass shedding of boulders on rubble-pile binary asteroid system (65803) Didymos |
| title_sort | Evidence for multi-fragmentation and mass shedding of boulders on rubble-pile binary asteroid system (65803) Didymos |
| topic | Asteroids, comets and Kuiper belt Geomorphology Structural geology |
| url | https://hdl.handle.net/20.500.12008/48831 |