The triple near-Earth asteroid (153591) 2001 SN263: an ultra-blue, primitive target for the Aster space mission
Autor(a) principal: | |
---|---|
Data de Publicação: | 2014 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1051/0004-6361/201424447 http://hdl.handle.net/11449/116872 |
Resumo: | Context. The Brazilian Aster project plans a space mission to rendezvous and characterize (153591) 2001 SN263, one of the only two known triple near-Earth asteroids (NEAs). Improving the knowledge of its physical properties is necessary to optimize the mission planning and science return.Aims. We study the surface composition and physical nature of 2001 SN263 by analyzing and comparing its reflectance spectra with laboratory spectra of minerals and meteorites.Methods. We performed spectroscopic observations of 2001 SN263 using the UV-to-NIR X-Shooter spectrograph at the ESO Very Large Telescope (VLT). Complementary photometric observations of the target were acquired with the FORS2 instrument.Results. We find B-type, featureless convex spectra (Themis-or Polana-like). 2001 SN263 presents the bluest visible spectrum ever observed for small bodies in the solar system, even bluer than NEAs Phaethon and Bennu. The spectra suggest that the surface composition is organic-and magnetite-rich, similar to that of heated CI carbonaceous chondrites. Phyllosilicates may be abundant as well. We find hints of a coarse-grained surface and composition variety within the triple system.Conclusions. Both the large grain size and surface variability might be connected to the formation of the triple system. The Aster mission will have the intriguing possibility of checking current models of asteroid binary formation. |
id |
UNSP_92703c1d9d5f697cb1e2caff1dcd8d2a |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/116872 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
The triple near-Earth asteroid (153591) 2001 SN263: an ultra-blue, primitive target for the Aster space missionminor planetsasteroids: individual: (153591) 2001 SN263techniques: spectroscopictechniques: photometricContext. The Brazilian Aster project plans a space mission to rendezvous and characterize (153591) 2001 SN263, one of the only two known triple near-Earth asteroids (NEAs). Improving the knowledge of its physical properties is necessary to optimize the mission planning and science return.Aims. We study the surface composition and physical nature of 2001 SN263 by analyzing and comparing its reflectance spectra with laboratory spectra of minerals and meteorites.Methods. We performed spectroscopic observations of 2001 SN263 using the UV-to-NIR X-Shooter spectrograph at the ESO Very Large Telescope (VLT). Complementary photometric observations of the target were acquired with the FORS2 instrument.Results. We find B-type, featureless convex spectra (Themis-or Polana-like). 2001 SN263 presents the bluest visible spectrum ever observed for small bodies in the solar system, even bluer than NEAs Phaethon and Bennu. The spectra suggest that the surface composition is organic-and magnetite-rich, similar to that of heated CI carbonaceous chondrites. Phyllosilicates may be abundant as well. We find hints of a coarse-grained surface and composition variety within the triple system.Conclusions. Both the large grain size and surface variability might be connected to the formation of the triple system. The Aster mission will have the intriguing possibility of checking current models of asteroid binary formation.NEOShield project - European Commission's Seventh Framework ProgrammeVEGA - The Slovack Agency for ScienceConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)INCT Estudos do EspacoFrench INSU-PNP programUniv Paris Diderot, Univ Paris 06, CNRS, LESIA Observ Paris, F-92195 Meudon, FranceObserv Nacl, BR-20921400 Rio De Janeiro, BrazilUniv Paris 07, F-75013 Paris, FranceSlovak Acad Sci, Astron Inst, Tatranska Lomnica 05960, SlovakiaUniv Estadual Paulista, Grp Dinam Orbital & Planetol, BR-12516410 Sp Guaratingueta, BrazilUniv Estadual Paulista, Grp Dinam Orbital & Planetol, BR-12516410 Sp Guaratingueta, BrazilNEOShield project - European Commission's Seventh Framework ProgrammeFP7-SPACE-2011-282703VEGA - The Slovack Agency for Science2/0032/14FAPESP: 11/08171-3Edp Sciences S AUniv Paris DiderotObserv NaclUniv Paris 07Slovak Acad SciUniversidade Estadual Paulista (Unesp)Perna, D.Alvarez-Candal, A.Fornasier, S.Kanuchova, Z.Giuliatti Winter, S. M. [UNESP]Vieira Neto, E. [UNESP]Winter, O. C. [UNESP]2015-03-18T15:54:18Z2015-03-18T15:54:18Z2014-08-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article4application/pdfhttp://dx.doi.org/10.1051/0004-6361/201424447Astronomy & Astrophysics. Les Ulis Cedex A: Edp Sciences S A, v. 568, 4 p., 2014.0004-6361http://hdl.handle.net/11449/11687210.1051/0004-6361/201424447WOS:000341185900138WOS000341185900138.pdf922486153340423671619631441001820960024575647258Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAstronomy & Astrophysics2,265info:eu-repo/semantics/openAccess2024-07-02T14:28:53Zoai:repositorio.unesp.br:11449/116872Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:50:09.926517Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
The triple near-Earth asteroid (153591) 2001 SN263: an ultra-blue, primitive target for the Aster space mission |
title |
The triple near-Earth asteroid (153591) 2001 SN263: an ultra-blue, primitive target for the Aster space mission |
spellingShingle |
The triple near-Earth asteroid (153591) 2001 SN263: an ultra-blue, primitive target for the Aster space mission Perna, D. minor planets asteroids: individual: (153591) 2001 SN263 techniques: spectroscopic techniques: photometric |
title_short |
The triple near-Earth asteroid (153591) 2001 SN263: an ultra-blue, primitive target for the Aster space mission |
title_full |
The triple near-Earth asteroid (153591) 2001 SN263: an ultra-blue, primitive target for the Aster space mission |
title_fullStr |
The triple near-Earth asteroid (153591) 2001 SN263: an ultra-blue, primitive target for the Aster space mission |
title_full_unstemmed |
The triple near-Earth asteroid (153591) 2001 SN263: an ultra-blue, primitive target for the Aster space mission |
title_sort |
The triple near-Earth asteroid (153591) 2001 SN263: an ultra-blue, primitive target for the Aster space mission |
author |
Perna, D. |
author_facet |
Perna, D. Alvarez-Candal, A. Fornasier, S. Kanuchova, Z. Giuliatti Winter, S. M. [UNESP] Vieira Neto, E. [UNESP] Winter, O. C. [UNESP] |
author_role |
author |
author2 |
Alvarez-Candal, A. Fornasier, S. Kanuchova, Z. Giuliatti Winter, S. M. [UNESP] Vieira Neto, E. [UNESP] Winter, O. C. [UNESP] |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Univ Paris Diderot Observ Nacl Univ Paris 07 Slovak Acad Sci Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Perna, D. Alvarez-Candal, A. Fornasier, S. Kanuchova, Z. Giuliatti Winter, S. M. [UNESP] Vieira Neto, E. [UNESP] Winter, O. C. [UNESP] |
dc.subject.por.fl_str_mv |
minor planets asteroids: individual: (153591) 2001 SN263 techniques: spectroscopic techniques: photometric |
topic |
minor planets asteroids: individual: (153591) 2001 SN263 techniques: spectroscopic techniques: photometric |
description |
Context. The Brazilian Aster project plans a space mission to rendezvous and characterize (153591) 2001 SN263, one of the only two known triple near-Earth asteroids (NEAs). Improving the knowledge of its physical properties is necessary to optimize the mission planning and science return.Aims. We study the surface composition and physical nature of 2001 SN263 by analyzing and comparing its reflectance spectra with laboratory spectra of minerals and meteorites.Methods. We performed spectroscopic observations of 2001 SN263 using the UV-to-NIR X-Shooter spectrograph at the ESO Very Large Telescope (VLT). Complementary photometric observations of the target were acquired with the FORS2 instrument.Results. We find B-type, featureless convex spectra (Themis-or Polana-like). 2001 SN263 presents the bluest visible spectrum ever observed for small bodies in the solar system, even bluer than NEAs Phaethon and Bennu. The spectra suggest that the surface composition is organic-and magnetite-rich, similar to that of heated CI carbonaceous chondrites. Phyllosilicates may be abundant as well. We find hints of a coarse-grained surface and composition variety within the triple system.Conclusions. Both the large grain size and surface variability might be connected to the formation of the triple system. The Aster mission will have the intriguing possibility of checking current models of asteroid binary formation. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-08-01 2015-03-18T15:54:18Z 2015-03-18T15:54:18Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1051/0004-6361/201424447 Astronomy & Astrophysics. Les Ulis Cedex A: Edp Sciences S A, v. 568, 4 p., 2014. 0004-6361 http://hdl.handle.net/11449/116872 10.1051/0004-6361/201424447 WOS:000341185900138 WOS000341185900138.pdf 9224861533404236 7161963144100182 0960024575647258 |
url |
http://dx.doi.org/10.1051/0004-6361/201424447 http://hdl.handle.net/11449/116872 |
identifier_str_mv |
Astronomy & Astrophysics. Les Ulis Cedex A: Edp Sciences S A, v. 568, 4 p., 2014. 0004-6361 10.1051/0004-6361/201424447 WOS:000341185900138 WOS000341185900138.pdf 9224861533404236 7161963144100182 0960024575647258 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Astronomy & Astrophysics 2,265 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
4 application/pdf |
dc.publisher.none.fl_str_mv |
Edp Sciences S A |
publisher.none.fl_str_mv |
Edp Sciences S A |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128570602553344 |