Towards a Fundamental Astrometric Reference System behind the Magellanic Clouds: Spectroscopic Confirmation of New Quasar Candidates Selected in the Near-infrared

Autores
Ivanov, Valentin D.; Cioni, Maria Rosa L.; Bekki, Kenji; de Grijs, Richard; Emerson, Jim; Gibson, Brad K.; Kamath, Devika; van Loon, Jacco Th.; Piatti, Andres Eduardo; For, Bi Qing
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Quasi-stellar objects (quasars) locatedbehind nearby galaxies provide anexcellent absolute reference system forastrometric studies, but they are diffi-cult to identify because of fore- andbackground contamination. We haveembarked on a programme to expandthe quasar reference system behindthe Large and Small Magellanic Clouds,the Magellanic Bridge and MagellanicStream. Hundreds of quasar candidateswere selected, based on their near-infrared colours and variability proper-ties from the ESO VISTA MagellanicClouds (VMC) Public Survey. A subsetof 49 objects was followed up with opti-cal spectroscopy with FORS2. We con-firmed the quasar nature of 37 objects(34 new identifications) that span a red-shift range from z ~ 0.5 to 4.1.
Fil: Ivanov, Valentin D.. No especifíca;
Fil: Cioni, Maria Rosa L.. Universitat Potsdam; Alemania. Leibniz-Institut für Astrophysik Potsdam; Alemania. University of Hertfordshire; Reino Unido
Fil: Bekki, Kenji. The University of Western Australia; Australia
Fil: de Grijs, Richard. Peking University; China. International Space Science Institute; China
Fil: Emerson, Jim. Queen Mary University of London; Reino Unido
Fil: Gibson, Brad K.. University of Hull; Reino Unido
Fil: Kamath, Devika. Instituut voor Sterrenkunde; Bélgica
Fil: van Loon, Jacco Th.. Keele University; Reino Unido
Fil: Piatti, Andres Eduardo. Universidad Nacional de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
Fil: For, Bi Qing. The University of Western Australia; Australia
Materia
quasars
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:11336/179781
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Towards a Fundamental Astrometric Reference System behind the Magellanic Clouds: Spectroscopic Confirmation of New Quasar Candidates Selected in the Near-infraredIvanov, Valentin D.Cioni, Maria Rosa L.Bekki, Kenjide Grijs, RichardEmerson, JimGibson, Brad K.Kamath, Devikavan Loon, Jacco Th.Piatti, Andres EduardoFor, Bi Qingquasarshttps://purl.org/becyt/ford/1.7https://purl.org/becyt/ford/1Quasi-stellar objects (quasars) locatedbehind nearby galaxies provide anexcellent absolute reference system forastrometric studies, but they are diffi-cult to identify because of fore- andbackground contamination. We haveembarked on a programme to expandthe quasar reference system behindthe Large and Small Magellanic Clouds,the Magellanic Bridge and MagellanicStream. Hundreds of quasar candidateswere selected, based on their near-infrared colours and variability proper-ties from the ESO VISTA MagellanicClouds (VMC) Public Survey. A subsetof 49 objects was followed up with opti-cal spectroscopy with FORS2. We con-firmed the quasar nature of 37 objects(34 new identifications) that span a red-shift range from z ~ 0.5 to 4.1.Fil: Ivanov, Valentin D.. No especifíca;Fil: Cioni, Maria Rosa L.. Universitat Potsdam; Alemania. Leibniz-Institut für Astrophysik Potsdam; Alemania. University of Hertfordshire; Reino UnidoFil: Bekki, Kenji. The University of Western Australia; AustraliaFil: de Grijs, Richard. Peking University; China. International Space Science Institute; ChinaFil: Emerson, Jim. Queen Mary University of London; Reino UnidoFil: Gibson, Brad K.. University of Hull; Reino UnidoFil: Kamath, Devika. Instituut voor Sterrenkunde; BélgicaFil: van Loon, Jacco Th.. Keele University; Reino UnidoFil: Piatti, Andres Eduardo. Universidad Nacional de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; ArgentinaFil: For, Bi Qing. The University of Western Australia; AustraliaEuropean Southern Observatory2016-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/179781Ivanov, Valentin D.; Cioni, Maria Rosa L.; Bekki, Kenji; de Grijs, Richard; Emerson, Jim; et al.; Towards a Fundamental Astrometric Reference System behind the Magellanic Clouds: Spectroscopic Confirmation of New Quasar Candidates Selected in the Near-infrared; European Southern Observatory; The Messenger; 163; 3-2016; 32-340722-6691CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.eso.org/sci/publications/messenger/archive/no.163-mar16/messenger-no163-32-34.pdfinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:28:52Zoai:ri.conicet.gov.ar:11336/179781instacron: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:34982025-10-22 11:28:52.34CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Towards a Fundamental Astrometric Reference System behind the Magellanic Clouds: Spectroscopic Confirmation of New Quasar Candidates Selected in the Near-infrared
title Towards a Fundamental Astrometric Reference System behind the Magellanic Clouds: Spectroscopic Confirmation of New Quasar Candidates Selected in the Near-infrared
spellingShingle Towards a Fundamental Astrometric Reference System behind the Magellanic Clouds: Spectroscopic Confirmation of New Quasar Candidates Selected in the Near-infrared
Ivanov, Valentin D.
quasars
title_short Towards a Fundamental Astrometric Reference System behind the Magellanic Clouds: Spectroscopic Confirmation of New Quasar Candidates Selected in the Near-infrared
title_full Towards a Fundamental Astrometric Reference System behind the Magellanic Clouds: Spectroscopic Confirmation of New Quasar Candidates Selected in the Near-infrared
title_fullStr Towards a Fundamental Astrometric Reference System behind the Magellanic Clouds: Spectroscopic Confirmation of New Quasar Candidates Selected in the Near-infrared
title_full_unstemmed Towards a Fundamental Astrometric Reference System behind the Magellanic Clouds: Spectroscopic Confirmation of New Quasar Candidates Selected in the Near-infrared
title_sort Towards a Fundamental Astrometric Reference System behind the Magellanic Clouds: Spectroscopic Confirmation of New Quasar Candidates Selected in the Near-infrared
dc.creator.none.fl_str_mv Ivanov, Valentin D.
Cioni, Maria Rosa L.
Bekki, Kenji
de Grijs, Richard
Emerson, Jim
Gibson, Brad K.
Kamath, Devika
van Loon, Jacco Th.
Piatti, Andres Eduardo
For, Bi Qing
author Ivanov, Valentin D.
author_facet Ivanov, Valentin D.
Cioni, Maria Rosa L.
Bekki, Kenji
de Grijs, Richard
Emerson, Jim
Gibson, Brad K.
Kamath, Devika
van Loon, Jacco Th.
Piatti, Andres Eduardo
For, Bi Qing
author_role author
author2 Cioni, Maria Rosa L.
Bekki, Kenji
de Grijs, Richard
Emerson, Jim
Gibson, Brad K.
Kamath, Devika
van Loon, Jacco Th.
Piatti, Andres Eduardo
For, Bi Qing
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv quasars
topic quasars
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.7
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Quasi-stellar objects (quasars) locatedbehind nearby galaxies provide anexcellent absolute reference system forastrometric studies, but they are diffi-cult to identify because of fore- andbackground contamination. We haveembarked on a programme to expandthe quasar reference system behindthe Large and Small Magellanic Clouds,the Magellanic Bridge and MagellanicStream. Hundreds of quasar candidateswere selected, based on their near-infrared colours and variability proper-ties from the ESO VISTA MagellanicClouds (VMC) Public Survey. A subsetof 49 objects was followed up with opti-cal spectroscopy with FORS2. We con-firmed the quasar nature of 37 objects(34 new identifications) that span a red-shift range from z ~ 0.5 to 4.1.
Fil: Ivanov, Valentin D.. No especifíca;
Fil: Cioni, Maria Rosa L.. Universitat Potsdam; Alemania. Leibniz-Institut für Astrophysik Potsdam; Alemania. University of Hertfordshire; Reino Unido
Fil: Bekki, Kenji. The University of Western Australia; Australia
Fil: de Grijs, Richard. Peking University; China. International Space Science Institute; China
Fil: Emerson, Jim. Queen Mary University of London; Reino Unido
Fil: Gibson, Brad K.. University of Hull; Reino Unido
Fil: Kamath, Devika. Instituut voor Sterrenkunde; Bélgica
Fil: van Loon, Jacco Th.. Keele University; Reino Unido
Fil: Piatti, Andres Eduardo. Universidad Nacional de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
Fil: For, Bi Qing. The University of Western Australia; Australia
description Quasi-stellar objects (quasars) locatedbehind nearby galaxies provide anexcellent absolute reference system forastrometric studies, but they are diffi-cult to identify because of fore- andbackground contamination. We haveembarked on a programme to expandthe quasar reference system behindthe Large and Small Magellanic Clouds,the Magellanic Bridge and MagellanicStream. Hundreds of quasar candidateswere selected, based on their near-infrared colours and variability proper-ties from the ESO VISTA MagellanicClouds (VMC) Public Survey. A subsetof 49 objects was followed up with opti-cal spectroscopy with FORS2. We con-firmed the quasar nature of 37 objects(34 new identifications) that span a red-shift range from z ~ 0.5 to 4.1.
publishDate 2016
dc.date.none.fl_str_mv 2016-03
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/11336/179781
Ivanov, Valentin D.; Cioni, Maria Rosa L.; Bekki, Kenji; de Grijs, Richard; Emerson, Jim; et al.; Towards a Fundamental Astrometric Reference System behind the Magellanic Clouds: Spectroscopic Confirmation of New Quasar Candidates Selected in the Near-infrared; European Southern Observatory; The Messenger; 163; 3-2016; 32-34
0722-6691
CONICET Digital
CONICET
url http://hdl.handle.net/11336/179781
identifier_str_mv Ivanov, Valentin D.; Cioni, Maria Rosa L.; Bekki, Kenji; de Grijs, Richard; Emerson, Jim; et al.; Towards a Fundamental Astrometric Reference System behind the Magellanic Clouds: Spectroscopic Confirmation of New Quasar Candidates Selected in the Near-infrared; European Southern Observatory; The Messenger; 163; 3-2016; 32-34
0722-6691
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.eso.org/sci/publications/messenger/archive/no.163-mar16/messenger-no163-32-34.pdf
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 European Southern Observatory
publisher.none.fl_str_mv European Southern Observatory
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_ 1846781870035959808
score 12.982451

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