Lifted particles from the fast spinning primary of the Near-Earth Asteroid (65803) Didymos

Autores
Trógolo, Nair Elisa; Campo Bagatin, Adriano; Moreno, Fernando; Benavidez, Paula G.
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
An increasing number of Near Earth Asteroids (NEAs) in the range of a few hundred metres to a few kilometres in size have relatively high spin rates, from less than 4 h, down to ∼2.2 h, depending on spectral type. For some of these bodies, local acceleration near the equator may be directed outwards so that lift off of near-equatorial material is possible. In particular, this may be the case for asteroid Didymos, the primary of the (65803) Didymos binary system, which is the target of the DART (NASA) and Hera (ESA) space missions. The study of the dynamics of particles in such an environment has been carried out – in the frame of the Hera mission and the EC-H2020 NEO-MAPP project – according to the available shape model, known physical parameters and orbital information available before the DART impact. The presence of orbiting particles in the system is likely for most of the estimated range of values for mass and volume. The spatial mass density of ejected material is calculated for different particle sizes and at different heliocentric orbit epochs, revealing that large particles dominate the mass density distribution and that small particle abundance depends on observation epoch. Estimates of take off and landing areas on Didymos are also reported. Available estimates of the system mass and primary extents, after the DART mission, confirm that the main conclusions of this study are valid in the context of current knowledge.
Fil: Trógolo, Nair Elisa. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Universidad de Alicante; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
Fil: Campo Bagatin, Adriano. Universidad de Alicante; España
Fil: Moreno, Fernando. Consejo Superior de Investigaciones Científicas; España
Fil: Benavidez, Paula G.. Universidad de Alicante; España
Materia
ASTEROIDS
DYNAMICS
ROTATION
NEAR-EARTH OBJECTS
REGOLITHS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/219476
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Lifted particles from the fast spinning primary of the Near-Earth Asteroid (65803) DidymosTrógolo, Nair ElisaCampo Bagatin, AdrianoMoreno, FernandoBenavidez, Paula G.ASTEROIDSDYNAMICSROTATIONNEAR-EARTH OBJECTSREGOLITHShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1An increasing number of Near Earth Asteroids (NEAs) in the range of a few hundred metres to a few kilometres in size have relatively high spin rates, from less than 4 h, down to ∼2.2 h, depending on spectral type. For some of these bodies, local acceleration near the equator may be directed outwards so that lift off of near-equatorial material is possible. In particular, this may be the case for asteroid Didymos, the primary of the (65803) Didymos binary system, which is the target of the DART (NASA) and Hera (ESA) space missions. The study of the dynamics of particles in such an environment has been carried out – in the frame of the Hera mission and the EC-H2020 NEO-MAPP project – according to the available shape model, known physical parameters and orbital information available before the DART impact. The presence of orbiting particles in the system is likely for most of the estimated range of values for mass and volume. The spatial mass density of ejected material is calculated for different particle sizes and at different heliocentric orbit epochs, revealing that large particles dominate the mass density distribution and that small particle abundance depends on observation epoch. Estimates of take off and landing areas on Didymos are also reported. Available estimates of the system mass and primary extents, after the DART mission, confirm that the main conclusions of this study are valid in the context of current knowledge.Fil: Trógolo, Nair Elisa. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Universidad de Alicante; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; ArgentinaFil: Campo Bagatin, Adriano. Universidad de Alicante; EspañaFil: Moreno, Fernando. Consejo Superior de Investigaciones Científicas; EspañaFil: Benavidez, Paula G.. Universidad de Alicante; EspañaAcademic Press Inc Elsevier Science2023-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/219476Trógolo, Nair Elisa; Campo Bagatin, Adriano; Moreno, Fernando; Benavidez, Paula G.; Lifted particles from the fast spinning primary of the Near-Earth Asteroid (65803) Didymos; Academic Press Inc Elsevier Science; Icarus; 397; 3-2023; 1-120019-1035CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.icarus.2023.115521info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:37:21Zoai:ri.conicet.gov.ar:11336/219476instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:37:21.674CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Lifted particles from the fast spinning primary of the Near-Earth Asteroid (65803) Didymos
title Lifted particles from the fast spinning primary of the Near-Earth Asteroid (65803) Didymos
spellingShingle Lifted particles from the fast spinning primary of the Near-Earth Asteroid (65803) Didymos
Trógolo, Nair Elisa
ASTEROIDS
DYNAMICS
ROTATION
NEAR-EARTH OBJECTS
REGOLITHS
title_short Lifted particles from the fast spinning primary of the Near-Earth Asteroid (65803) Didymos
title_full Lifted particles from the fast spinning primary of the Near-Earth Asteroid (65803) Didymos
title_fullStr Lifted particles from the fast spinning primary of the Near-Earth Asteroid (65803) Didymos
title_full_unstemmed Lifted particles from the fast spinning primary of the Near-Earth Asteroid (65803) Didymos
title_sort Lifted particles from the fast spinning primary of the Near-Earth Asteroid (65803) Didymos
dc.creator.none.fl_str_mv Trógolo, Nair Elisa
Campo Bagatin, Adriano
Moreno, Fernando
Benavidez, Paula G.
author Trógolo, Nair Elisa
author_facet Trógolo, Nair Elisa
Campo Bagatin, Adriano
Moreno, Fernando
Benavidez, Paula G.
author_role author
author2 Campo Bagatin, Adriano
Moreno, Fernando
Benavidez, Paula G.
author2_role author
author
author
dc.subject.none.fl_str_mv ASTEROIDS
DYNAMICS
ROTATION
NEAR-EARTH OBJECTS
REGOLITHS
topic ASTEROIDS
DYNAMICS
ROTATION
NEAR-EARTH OBJECTS
REGOLITHS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv An increasing number of Near Earth Asteroids (NEAs) in the range of a few hundred metres to a few kilometres in size have relatively high spin rates, from less than 4 h, down to ∼2.2 h, depending on spectral type. For some of these bodies, local acceleration near the equator may be directed outwards so that lift off of near-equatorial material is possible. In particular, this may be the case for asteroid Didymos, the primary of the (65803) Didymos binary system, which is the target of the DART (NASA) and Hera (ESA) space missions. The study of the dynamics of particles in such an environment has been carried out – in the frame of the Hera mission and the EC-H2020 NEO-MAPP project – according to the available shape model, known physical parameters and orbital information available before the DART impact. The presence of orbiting particles in the system is likely for most of the estimated range of values for mass and volume. The spatial mass density of ejected material is calculated for different particle sizes and at different heliocentric orbit epochs, revealing that large particles dominate the mass density distribution and that small particle abundance depends on observation epoch. Estimates of take off and landing areas on Didymos are also reported. Available estimates of the system mass and primary extents, after the DART mission, confirm that the main conclusions of this study are valid in the context of current knowledge.
Fil: Trógolo, Nair Elisa. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Universidad de Alicante; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
Fil: Campo Bagatin, Adriano. Universidad de Alicante; España
Fil: Moreno, Fernando. Consejo Superior de Investigaciones Científicas; España
Fil: Benavidez, Paula G.. Universidad de Alicante; España
description An increasing number of Near Earth Asteroids (NEAs) in the range of a few hundred metres to a few kilometres in size have relatively high spin rates, from less than 4 h, down to ∼2.2 h, depending on spectral type. For some of these bodies, local acceleration near the equator may be directed outwards so that lift off of near-equatorial material is possible. In particular, this may be the case for asteroid Didymos, the primary of the (65803) Didymos binary system, which is the target of the DART (NASA) and Hera (ESA) space missions. The study of the dynamics of particles in such an environment has been carried out – in the frame of the Hera mission and the EC-H2020 NEO-MAPP project – according to the available shape model, known physical parameters and orbital information available before the DART impact. The presence of orbiting particles in the system is likely for most of the estimated range of values for mass and volume. The spatial mass density of ejected material is calculated for different particle sizes and at different heliocentric orbit epochs, revealing that large particles dominate the mass density distribution and that small particle abundance depends on observation epoch. Estimates of take off and landing areas on Didymos are also reported. Available estimates of the system mass and primary extents, after the DART mission, confirm that the main conclusions of this study are valid in the context of current knowledge.
publishDate 2023
dc.date.none.fl_str_mv 2023-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/219476
Trógolo, Nair Elisa; Campo Bagatin, Adriano; Moreno, Fernando; Benavidez, Paula G.; Lifted particles from the fast spinning primary of the Near-Earth Asteroid (65803) Didymos; Academic Press Inc Elsevier Science; Icarus; 397; 3-2023; 1-12
0019-1035
CONICET Digital
CONICET
url http://hdl.handle.net/11336/219476
identifier_str_mv Trógolo, Nair Elisa; Campo Bagatin, Adriano; Moreno, Fernando; Benavidez, Paula G.; Lifted particles from the fast spinning primary of the Near-Earth Asteroid (65803) Didymos; Academic Press Inc Elsevier Science; Icarus; 397; 3-2023; 1-12
0019-1035
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.icarus.2023.115521
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Academic Press Inc Elsevier Science
publisher.none.fl_str_mv Academic Press Inc Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1844613177057214464
score 13.070432

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