New cases of unusual polarimetric behavior in asteroids
- Autores
- Gil-hutton, Ricardo Alfredo; Mesa, Valeria Alejandra; Cellino, A.; Bendjoya, Ph.; Peñaloza, Leandro Esteban; Lovos, Flavia Virginia
- Año de publicación
- 2008
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Aims. Results of different polarimetric campaigns at Complejo Astronómico El Leoncito (Casleo), San Juan, Argentina are presented. The aim of these campaigns was to search for objects exhibiting anomalous polarimetric properties, similar to those shown by the Ld-class asteroid (234) Barbara, among members of the same or similar taxonomic classes. Methods. The data have been obtained with Torino and CASPROF polarimeters at the 2.15 m telescope. The Torino polarimeter is an instrument that allows simultaneous measurement of polarization in five different bands, and CASPROF polarimeter is a two-hole aperture polarimeter with rapid modulation. Results. The campaigns began in 2005, and we found four new asteroids with Barbara-like polarimetric properties: the L-class objects (172) Baucis, (236) Honoria and (980) Anacostia, and the K-class asteroid (679) Pax. The polarimetric properties of the phase-polarization curves of these objects may be produced by a mixture of high- and low-albedo particles in their regolith as a result of the fragmentation of a substrate that is spectrally analog to the CO3/CV3 chondrites.
Fil: Gil-hutton, Ricardo Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico "El Leoncito". Universidad Nacional de Córdoba. Complejo Astronómico "El Leoncito". Universidad Nacional de la Plata. Complejo Astronómico "El Leoncito". Universidad Nacional de San Juan. Complejo Astronómico "El Leoncito"; Argentina
Fil: Mesa, Valeria Alejandra. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; Argentina
Fil: Cellino, A.. Istituto Nazionale di Astrofisica; Italia
Fil: Bendjoya, Ph.. Observatoire de la Cote D'Azur; Francia
Fil: Peñaloza, Leandro Esteban. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; Argentina
Fil: Lovos, Flavia Virginia. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; Argentina - Materia
-
SOLAR SYSTEM
ASTEROIDS
POLARIZATION - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/214813
Ver los metadatos del registro completo
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oai:ri.conicet.gov.ar:11336/214813 |
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3498 |
network_name_str |
CONICET Digital (CONICET) |
spelling |
New cases of unusual polarimetric behavior in asteroidsGil-hutton, Ricardo AlfredoMesa, Valeria AlejandraCellino, A.Bendjoya, Ph.Peñaloza, Leandro EstebanLovos, Flavia VirginiaSOLAR SYSTEMASTEROIDSPOLARIZATIONhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Aims. Results of different polarimetric campaigns at Complejo Astronómico El Leoncito (Casleo), San Juan, Argentina are presented. The aim of these campaigns was to search for objects exhibiting anomalous polarimetric properties, similar to those shown by the Ld-class asteroid (234) Barbara, among members of the same or similar taxonomic classes. Methods. The data have been obtained with Torino and CASPROF polarimeters at the 2.15 m telescope. The Torino polarimeter is an instrument that allows simultaneous measurement of polarization in five different bands, and CASPROF polarimeter is a two-hole aperture polarimeter with rapid modulation. Results. The campaigns began in 2005, and we found four new asteroids with Barbara-like polarimetric properties: the L-class objects (172) Baucis, (236) Honoria and (980) Anacostia, and the K-class asteroid (679) Pax. The polarimetric properties of the phase-polarization curves of these objects may be produced by a mixture of high- and low-albedo particles in their regolith as a result of the fragmentation of a substrate that is spectrally analog to the CO3/CV3 chondrites.Fil: Gil-hutton, Ricardo Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico "El Leoncito". Universidad Nacional de Córdoba. Complejo Astronómico "El Leoncito". Universidad Nacional de la Plata. Complejo Astronómico "El Leoncito". Universidad Nacional de San Juan. Complejo Astronómico "El Leoncito"; ArgentinaFil: Mesa, Valeria Alejandra. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; ArgentinaFil: Cellino, A.. Istituto Nazionale di Astrofisica; ItaliaFil: Bendjoya, Ph.. Observatoire de la Cote D'Azur; FranciaFil: Peñaloza, Leandro Esteban. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; ArgentinaFil: Lovos, Flavia Virginia. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; ArgentinaEDP Sciences2008-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/214813Gil-hutton, Ricardo Alfredo; Mesa, Valeria Alejandra; Cellino, A.; Bendjoya, Ph. ; Peñaloza, Leandro Esteban; et al.; New cases of unusual polarimetric behavior in asteroids; EDP Sciences; Astronomy and Astrophysics; 482; 1; 2-2008; 309-3140004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361:20078965info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2008/16/aa8965-07/aa8965-07.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 Técnicas2025-09-29T09:35:17Zoai:ri.conicet.gov.ar:11336/214813instacron: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 09:35:17.707CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
New cases of unusual polarimetric behavior in asteroids |
title |
New cases of unusual polarimetric behavior in asteroids |
spellingShingle |
New cases of unusual polarimetric behavior in asteroids Gil-hutton, Ricardo Alfredo SOLAR SYSTEM ASTEROIDS POLARIZATION |
title_short |
New cases of unusual polarimetric behavior in asteroids |
title_full |
New cases of unusual polarimetric behavior in asteroids |
title_fullStr |
New cases of unusual polarimetric behavior in asteroids |
title_full_unstemmed |
New cases of unusual polarimetric behavior in asteroids |
title_sort |
New cases of unusual polarimetric behavior in asteroids |
dc.creator.none.fl_str_mv |
Gil-hutton, Ricardo Alfredo Mesa, Valeria Alejandra Cellino, A. Bendjoya, Ph. Peñaloza, Leandro Esteban Lovos, Flavia Virginia |
author |
Gil-hutton, Ricardo Alfredo |
author_facet |
Gil-hutton, Ricardo Alfredo Mesa, Valeria Alejandra Cellino, A. Bendjoya, Ph. Peñaloza, Leandro Esteban Lovos, Flavia Virginia |
author_role |
author |
author2 |
Mesa, Valeria Alejandra Cellino, A. Bendjoya, Ph. Peñaloza, Leandro Esteban Lovos, Flavia Virginia |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
SOLAR SYSTEM ASTEROIDS POLARIZATION |
topic |
SOLAR SYSTEM ASTEROIDS POLARIZATION |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Aims. Results of different polarimetric campaigns at Complejo Astronómico El Leoncito (Casleo), San Juan, Argentina are presented. The aim of these campaigns was to search for objects exhibiting anomalous polarimetric properties, similar to those shown by the Ld-class asteroid (234) Barbara, among members of the same or similar taxonomic classes. Methods. The data have been obtained with Torino and CASPROF polarimeters at the 2.15 m telescope. The Torino polarimeter is an instrument that allows simultaneous measurement of polarization in five different bands, and CASPROF polarimeter is a two-hole aperture polarimeter with rapid modulation. Results. The campaigns began in 2005, and we found four new asteroids with Barbara-like polarimetric properties: the L-class objects (172) Baucis, (236) Honoria and (980) Anacostia, and the K-class asteroid (679) Pax. The polarimetric properties of the phase-polarization curves of these objects may be produced by a mixture of high- and low-albedo particles in their regolith as a result of the fragmentation of a substrate that is spectrally analog to the CO3/CV3 chondrites. Fil: Gil-hutton, Ricardo Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico "El Leoncito". Universidad Nacional de Córdoba. Complejo Astronómico "El Leoncito". Universidad Nacional de la Plata. Complejo Astronómico "El Leoncito". Universidad Nacional de San Juan. Complejo Astronómico "El Leoncito"; Argentina Fil: Mesa, Valeria Alejandra. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; Argentina Fil: Cellino, A.. Istituto Nazionale di Astrofisica; Italia Fil: Bendjoya, Ph.. Observatoire de la Cote D'Azur; Francia Fil: Peñaloza, Leandro Esteban. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; Argentina Fil: Lovos, Flavia Virginia. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; Argentina |
description |
Aims. Results of different polarimetric campaigns at Complejo Astronómico El Leoncito (Casleo), San Juan, Argentina are presented. The aim of these campaigns was to search for objects exhibiting anomalous polarimetric properties, similar to those shown by the Ld-class asteroid (234) Barbara, among members of the same or similar taxonomic classes. Methods. The data have been obtained with Torino and CASPROF polarimeters at the 2.15 m telescope. The Torino polarimeter is an instrument that allows simultaneous measurement of polarization in five different bands, and CASPROF polarimeter is a two-hole aperture polarimeter with rapid modulation. Results. The campaigns began in 2005, and we found four new asteroids with Barbara-like polarimetric properties: the L-class objects (172) Baucis, (236) Honoria and (980) Anacostia, and the K-class asteroid (679) Pax. The polarimetric properties of the phase-polarization curves of these objects may be produced by a mixture of high- and low-albedo particles in their regolith as a result of the fragmentation of a substrate that is spectrally analog to the CO3/CV3 chondrites. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-02 |
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/11336/214813 Gil-hutton, Ricardo Alfredo; Mesa, Valeria Alejandra; Cellino, A.; Bendjoya, Ph. ; Peñaloza, Leandro Esteban; et al.; New cases of unusual polarimetric behavior in asteroids; EDP Sciences; Astronomy and Astrophysics; 482; 1; 2-2008; 309-314 0004-6361 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/214813 |
identifier_str_mv |
Gil-hutton, Ricardo Alfredo; Mesa, Valeria Alejandra; Cellino, A.; Bendjoya, Ph. ; Peñaloza, Leandro Esteban; et al.; New cases of unusual polarimetric behavior in asteroids; EDP Sciences; Astronomy and Astrophysics; 482; 1; 2-2008; 309-314 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/10.1051/0004-6361:20078965 info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2008/16/aa8965-07/aa8965-07.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 application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
EDP Sciences |
publisher.none.fl_str_mv |
EDP Sciences |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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13.070432 |