On the Fate of Slow Boulders Ejected after DART Impact on Dimorphos
On 2022 September 26 23:14 UT, the NASA Double Asteroid Redirection Test spacecraft successfully impacted Dimorphos, the secondary component of the binary (65803) Didymos system, demonstrating asteroid orbit deflection for the first time. A large amount of debris, consisting of a wide size–frequency...
| Hlavní autoři: | , , |
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| Médium: | Článek |
| Jazyk: | English |
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IOP Publishing
2024-01-01
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| Edice: | The Planetary Science Journal |
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| On-line přístup: | https://doi.org/10.3847/PSJ/ad26f8 |
| _version_ | 1827322580053262336 |
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| author | Fernando Moreno Gonzalo Tancredi Adriano Campo Bagatin |
| author_facet | Fernando Moreno Gonzalo Tancredi Adriano Campo Bagatin |
| author_sort | Fernando Moreno |
| collection | DOAJ |
| description | On 2022 September 26 23:14 UT, the NASA Double Asteroid Redirection Test spacecraft successfully impacted Dimorphos, the secondary component of the binary (65803) Didymos system, demonstrating asteroid orbit deflection for the first time. A large amount of debris, consisting of a wide size–frequency distribution of particulates (from micron-sized dust to meter-sized boulders), was released, and a long-lasting tail has been observed over more than 9 months since impact. An important fraction of the ejecta mass has been ejected as individual meter-sized boulders, as have been found in images obtained by the Light Italian CubeSat for Imaging of Asteroid (LICIACube), as well as from the Hubble Space Telescope (HST). While the boulders observed by LICIACube had projected speeds of several tens of m s ^–1 , those seen by the HST were about 100 times slower. In this paper, we analyze the long-term orbital evolution of those slow boulders using different dynamical codes, providing constraints on the fate of such large particles, and giving insight on the possibility of observing some of those boulders that might remain in orbit at the time of the ESA/Hera mission arrival to the binary system in late 2026. |
| first_indexed | 2024-04-25T01:27:39Z |
| format | Article |
| id | doaj.art-1d050138a6e3471dac14c1970974710e |
| institution | Directory Open Access Journal |
| issn | 2632-3338 |
| language | English |
| last_indexed | 2024-04-25T01:27:39Z |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Planetary Science Journal |
| spelling | doaj.art-1d050138a6e3471dac14c1970974710e2024-03-08T16:51:22ZengIOP PublishingThe Planetary Science Journal2632-33382024-01-01536310.3847/PSJ/ad26f8On the Fate of Slow Boulders Ejected after DART Impact on DimorphosFernando Moreno0https://orcid.org/0000-0003-0670-356XGonzalo Tancredi1https://orcid.org/0000-0002-4943-8623Adriano Campo Bagatin2https://orcid.org/0000-0001-9840-2216Instituto de Astrofísica de Andalucía , CSIC Glorieta de la Astronomía, s/n, 18008 Granada, SpainDepartamento de Astronomía, Facultad de Ciencias, Iguá 4225, 11400 Montevideo, UruguayInstituto de Física Aplicada a las Ciencias y las Tecnologías (IUFACyT), Universidad de Alicante , San Vicent del Raspeig, 03690 Alicante, Spain; Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal Universidad de Alicante , San Vicent del Raspeig, 03690 Alicante, SpainOn 2022 September 26 23:14 UT, the NASA Double Asteroid Redirection Test spacecraft successfully impacted Dimorphos, the secondary component of the binary (65803) Didymos system, demonstrating asteroid orbit deflection for the first time. A large amount of debris, consisting of a wide size–frequency distribution of particulates (from micron-sized dust to meter-sized boulders), was released, and a long-lasting tail has been observed over more than 9 months since impact. An important fraction of the ejecta mass has been ejected as individual meter-sized boulders, as have been found in images obtained by the Light Italian CubeSat for Imaging of Asteroid (LICIACube), as well as from the Hubble Space Telescope (HST). While the boulders observed by LICIACube had projected speeds of several tens of m s ^–1 , those seen by the HST were about 100 times slower. In this paper, we analyze the long-term orbital evolution of those slow boulders using different dynamical codes, providing constraints on the fate of such large particles, and giving insight on the possibility of observing some of those boulders that might remain in orbit at the time of the ESA/Hera mission arrival to the binary system in late 2026.https://doi.org/10.3847/PSJ/ad26f8Asteroid dynamics |
| spellingShingle | Fernando Moreno Gonzalo Tancredi Adriano Campo Bagatin On the Fate of Slow Boulders Ejected after DART Impact on Dimorphos The Planetary Science Journal Asteroid dynamics |
| title | On the Fate of Slow Boulders Ejected after DART Impact on Dimorphos |
| title_full | On the Fate of Slow Boulders Ejected after DART Impact on Dimorphos |
| title_fullStr | On the Fate of Slow Boulders Ejected after DART Impact on Dimorphos |
| title_full_unstemmed | On the Fate of Slow Boulders Ejected after DART Impact on Dimorphos |
| title_short | On the Fate of Slow Boulders Ejected after DART Impact on Dimorphos |
| title_sort | on the fate of slow boulders ejected after dart impact on dimorphos |
| topic | Asteroid dynamics |
| url | https://doi.org/10.3847/PSJ/ad26f8 |
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