A dynamical and observational study of an unstable TNO: 59358 (1999CL158)

Autores
Alvarez Candal, A.; Jones, D.; Lazzaro, D.; Williams, I. P.; Melita, Mario Daniel
Año de publicación
2007
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Context: The physical surface properties of a trans-Neptunian Object is believed to be mainly produced as a result of interplay between irradiation from different kinds of cosmic rays and collisions. Objects recently resurfaced by collisions are likely to have very different physical properties from those of the bulk population. In particular, pristine ices from the interior are expected to be present on the surface. A possible way to identify a trans-Neptunian object that has suffered a major collision is by investigating the lifetime of the orbit near its present location. If the lifetime is very short, a physical encounter is a possible way by which the TNO has evolved into such a short lived orbit. Aims: The goal of this investigation is to search for tracers of a young surface on objects with very short orbital lifetimes in the trans-Neptunian Belt. We are looking for any evidence that indicates that they reached their current unstable orbits through collisions. In particular, we have studied the case of 59358 (1999CL{158}), a trans-Neptunian object that currently has the most chaotic orbit in the Classical Belt. Methods: By numerically integration its orbit, we estimate that 59358 (1999CL{158}) has resided near its location for about 10 Myr. We have also obtained a near-infrared spectrum of 59358 (1999CL{158}) in the region between 1.43-1.96 microns using the near infrared imager and spectrograph, NIRI, at Gemini North 8-m telescope. These NIR observations are of the faintest and smallest TNO so far observed. Results: We present the results of the search of ice-bands, such as CH4 and H2O, having found evidence of the presence of the first mentioned molecule. Conclusions: The detection of methane implies that it must be an abundant component of this object. Methane is also evidence of a young surface, therefore we conclude that it is likely that 59358 (1999CL{158}) has experienced a recent collision or collisions.

Based on observations obtained at the Gemini Observatory, which is operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the NSF on behalf of the Gemini partnership: the National Science Foundation (United States), the Particle Physics and Astronomy Research Council (UK), the National Research Council (Canada), CONICYT (Chile), the Australian Research Council (Australia), CNPq (Brazil) and CONICET (Argentina).
Fil: Alvarez Candal, A.. Ministério de Ciencia, Tecnologia e Innovacao. Observatorio Nacional; Brasil
Fil: Jones, D.. University Of London; Reino Unido
Fil: Lazzaro, D.. Ministério de Ciencia, Tecnologia e Innovacao. Observatorio Nacional; Brasil
Fil: Williams, I. P.. University Of London; Reino Unido
Fil: Melita, Mario Daniel. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina

Materia
Kuiper Belt
Comets
Asteroids
Solar System origin
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/20989

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network_name_str CONICET Digital (CONICET)
spelling A dynamical and observational study of an unstable TNO: 59358 (1999CL158)Alvarez Candal, A.Jones, D.Lazzaro, D.Williams, I. P.Melita, Mario DanielKuiper BeltCometsAsteroidsSolar System originhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Context: The physical surface properties of a trans-Neptunian Object is believed to be mainly produced as a result of interplay between irradiation from different kinds of cosmic rays and collisions. Objects recently resurfaced by collisions are likely to have very different physical properties from those of the bulk population. In particular, pristine ices from the interior are expected to be present on the surface. A possible way to identify a trans-Neptunian object that has suffered a major collision is by investigating the lifetime of the orbit near its present location. If the lifetime is very short, a physical encounter is a possible way by which the TNO has evolved into such a short lived orbit. Aims: The goal of this investigation is to search for tracers of a young surface on objects with very short orbital lifetimes in the trans-Neptunian Belt. We are looking for any evidence that indicates that they reached their current unstable orbits through collisions. In particular, we have studied the case of 59358 (1999CL{158}), a trans-Neptunian object that currently has the most chaotic orbit in the Classical Belt. Methods: By numerically integration its orbit, we estimate that 59358 (1999CL{158}) has resided near its location for about 10 Myr. We have also obtained a near-infrared spectrum of 59358 (1999CL{158}) in the region between 1.43-1.96 microns using the near infrared imager and spectrograph, NIRI, at Gemini North 8-m telescope. These NIR observations are of the faintest and smallest TNO so far observed. Results: We present the results of the search of ice-bands, such as CH4 and H2O, having found evidence of the presence of the first mentioned molecule. Conclusions: The detection of methane implies that it must be an abundant component of this object. Methane is also evidence of a young surface, therefore we conclude that it is likely that 59358 (1999CL{158}) has experienced a recent collision or collisions. <p>Based on observations obtained at the Gemini Observatory, which is operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the NSF on behalf of the Gemini partnership: the National Science Foundation (United States), the Particle Physics and Astronomy Research Council (UK), the National Research Council (Canada), CONICYT (Chile), the Australian Research Council (Australia), CNPq (Brazil) and CONICET (Argentina).Fil: Alvarez Candal, A.. Ministério de Ciencia, Tecnologia e Innovacao. Observatorio Nacional; BrasilFil: Jones, D.. University Of London; Reino UnidoFil: Lazzaro, D.. Ministério de Ciencia, Tecnologia e Innovacao. Observatorio Nacional; BrasilFil: Williams, I. P.. University Of London; Reino UnidoFil: Melita, Mario Daniel. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaEDP Sciences2007-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/20989Alvarez Candal, A.; Jones, D.; Lazzaro, D.; Williams, I. P.; Melita, Mario Daniel; A dynamical and observational study of an unstable TNO: 59358 (1999CL158); EDP Sciences; Astronomy and Astrophysics; 466; 2; 12-2007; 749-7530004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361:20066849info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2007/17/aa6849-06/aa6849-06.htmlinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:08:25Zoai:ri.conicet.gov.ar:11336/20989instacron: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 10:08:26.261CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A dynamical and observational study of an unstable TNO: 59358 (1999CL158)
title A dynamical and observational study of an unstable TNO: 59358 (1999CL158)
spellingShingle A dynamical and observational study of an unstable TNO: 59358 (1999CL158)
Alvarez Candal, A.
Kuiper Belt
Comets
Asteroids
Solar System origin
title_short A dynamical and observational study of an unstable TNO: 59358 (1999CL158)
title_full A dynamical and observational study of an unstable TNO: 59358 (1999CL158)
title_fullStr A dynamical and observational study of an unstable TNO: 59358 (1999CL158)
title_full_unstemmed A dynamical and observational study of an unstable TNO: 59358 (1999CL158)
title_sort A dynamical and observational study of an unstable TNO: 59358 (1999CL158)
dc.creator.none.fl_str_mv Alvarez Candal, A.
Jones, D.
Lazzaro, D.
Williams, I. P.
Melita, Mario Daniel
author Alvarez Candal, A.
author_facet Alvarez Candal, A.
Jones, D.
Lazzaro, D.
Williams, I. P.
Melita, Mario Daniel
author_role author
author2 Jones, D.
Lazzaro, D.
Williams, I. P.
Melita, Mario Daniel
author2_role author
author
author
author
dc.subject.none.fl_str_mv Kuiper Belt
Comets
Asteroids
Solar System origin
topic Kuiper Belt
Comets
Asteroids
Solar System origin
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Context: The physical surface properties of a trans-Neptunian Object is believed to be mainly produced as a result of interplay between irradiation from different kinds of cosmic rays and collisions. Objects recently resurfaced by collisions are likely to have very different physical properties from those of the bulk population. In particular, pristine ices from the interior are expected to be present on the surface. A possible way to identify a trans-Neptunian object that has suffered a major collision is by investigating the lifetime of the orbit near its present location. If the lifetime is very short, a physical encounter is a possible way by which the TNO has evolved into such a short lived orbit. Aims: The goal of this investigation is to search for tracers of a young surface on objects with very short orbital lifetimes in the trans-Neptunian Belt. We are looking for any evidence that indicates that they reached their current unstable orbits through collisions. In particular, we have studied the case of 59358 (1999CL{158}), a trans-Neptunian object that currently has the most chaotic orbit in the Classical Belt. Methods: By numerically integration its orbit, we estimate that 59358 (1999CL{158}) has resided near its location for about 10 Myr. We have also obtained a near-infrared spectrum of 59358 (1999CL{158}) in the region between 1.43-1.96 microns using the near infrared imager and spectrograph, NIRI, at Gemini North 8-m telescope. These NIR observations are of the faintest and smallest TNO so far observed. Results: We present the results of the search of ice-bands, such as CH4 and H2O, having found evidence of the presence of the first mentioned molecule. Conclusions: The detection of methane implies that it must be an abundant component of this object. Methane is also evidence of a young surface, therefore we conclude that it is likely that 59358 (1999CL{158}) has experienced a recent collision or collisions. <p>Based on observations obtained at the Gemini Observatory, which is operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the NSF on behalf of the Gemini partnership: the National Science Foundation (United States), the Particle Physics and Astronomy Research Council (UK), the National Research Council (Canada), CONICYT (Chile), the Australian Research Council (Australia), CNPq (Brazil) and CONICET (Argentina).
Fil: Alvarez Candal, A.. Ministério de Ciencia, Tecnologia e Innovacao. Observatorio Nacional; Brasil
Fil: Jones, D.. University Of London; Reino Unido
Fil: Lazzaro, D.. Ministério de Ciencia, Tecnologia e Innovacao. Observatorio Nacional; Brasil
Fil: Williams, I. P.. University Of London; Reino Unido
Fil: Melita, Mario Daniel. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
description Context: The physical surface properties of a trans-Neptunian Object is believed to be mainly produced as a result of interplay between irradiation from different kinds of cosmic rays and collisions. Objects recently resurfaced by collisions are likely to have very different physical properties from those of the bulk population. In particular, pristine ices from the interior are expected to be present on the surface. A possible way to identify a trans-Neptunian object that has suffered a major collision is by investigating the lifetime of the orbit near its present location. If the lifetime is very short, a physical encounter is a possible way by which the TNO has evolved into such a short lived orbit. Aims: The goal of this investigation is to search for tracers of a young surface on objects with very short orbital lifetimes in the trans-Neptunian Belt. We are looking for any evidence that indicates that they reached their current unstable orbits through collisions. In particular, we have studied the case of 59358 (1999CL{158}), a trans-Neptunian object that currently has the most chaotic orbit in the Classical Belt. Methods: By numerically integration its orbit, we estimate that 59358 (1999CL{158}) has resided near its location for about 10 Myr. We have also obtained a near-infrared spectrum of 59358 (1999CL{158}) in the region between 1.43-1.96 microns using the near infrared imager and spectrograph, NIRI, at Gemini North 8-m telescope. These NIR observations are of the faintest and smallest TNO so far observed. Results: We present the results of the search of ice-bands, such as CH4 and H2O, having found evidence of the presence of the first mentioned molecule. Conclusions: The detection of methane implies that it must be an abundant component of this object. Methane is also evidence of a young surface, therefore we conclude that it is likely that 59358 (1999CL{158}) has experienced a recent collision or collisions. <p>Based on observations obtained at the Gemini Observatory, which is operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the NSF on behalf of the Gemini partnership: the National Science Foundation (United States), the Particle Physics and Astronomy Research Council (UK), the National Research Council (Canada), CONICYT (Chile), the Australian Research Council (Australia), CNPq (Brazil) and CONICET (Argentina).
publishDate 2007
dc.date.none.fl_str_mv 2007-12
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/11336/20989
Alvarez Candal, A.; Jones, D.; Lazzaro, D.; Williams, I. P.; Melita, Mario Daniel; A dynamical and observational study of an unstable TNO: 59358 (1999CL158); EDP Sciences; Astronomy and Astrophysics; 466; 2; 12-2007; 749-753
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/20989
identifier_str_mv Alvarez Candal, A.; Jones, D.; Lazzaro, D.; Williams, I. P.; Melita, Mario Daniel; A dynamical and observational study of an unstable TNO: 59358 (1999CL158); EDP Sciences; Astronomy and Astrophysics; 466; 2; 12-2007; 749-753
0004-6361
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361:20066849
info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2007/17/aa6849-06/aa6849-06.html
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
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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
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