The complex stellar populations in the background of open clusters in the third Galactic quadrant

Autores
Carraro, Giovanni; Seleznev, Anton F.; Baume, Gustavo Luis; Turner D.
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Multi-color photometry of the stellar populations in five fields in the third Galactic quadrant centred on the clusters NGC 2215, NGC 2354, Haffner 22, Ruprecht 11, and ESO489 SC01 is interpreted in terms of a warped and flared Galactic disk, without resort to an external entity such as the popular Monoceros or Canis Major overdensities. Except for NGC 2215, the clusters are poorly or unstudied previously. The data generate basic parameters for eachcluster, including the distribution of stars along the line of sight.We use star counts and photometric analysis, without recourse to Galactic-model-based predictions or interpretations, and confirms earlier results for NGC 2215 and NGC 2354. ESO489 SC01 is not a real cluster, while Haffner 22 is an overlooked cluster aged 2.5 Gyr. Conclusions for Ruprecht 11 are preliminary, evidence for a cluster being marginal. Fields surrounding the clusters show signaturesof young and intermediate-age stellar populations. The young population background to NGC 2354 and Ruprecht 11 lies 8?9 kpc from the Sun and 1 kpc below the formal Galactic plane, tracing a portion of the Norma-Cygnus arm, challenging Galactic models that adopt a sharp cut-off of the disk 1214 kpc from the Galactic center. The old population is metal poor with an age of 2 3 Gyr, resembling star clusters like Tombaugh 2 or NGC 2158. It has a large color spread and is difficult to locate precisely. Young and old populations followa pattern that depends critically on the vertical location of the thin and/or thick disk, and whether or not a particular line of sight intersects one, both, or none.
Fil: Carraro, Giovanni. European Southern Observatory; Chile
Fil: Seleznev, Anton F.. Ural Federal University; Rusia
Fil: Baume, Gustavo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; Argentina
Fil: Turner D.. Saint Mary’s University; Canadá
Materia
Structure of galaxy
Galaxy disks
Galaxy
Open clusters
Associations (estrellas)
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:11336/35482
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The complex stellar populations in the background of open clusters in the third Galactic quadrantCarraro, GiovanniSeleznev, Anton F.Baume, Gustavo LuisTurner D.Structure of galaxyGalaxy disksGalaxyOpen clustersAssociations (estrellas)https://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Multi-color photometry of the stellar populations in five fields in the third Galactic quadrant centred on the clusters NGC 2215, NGC 2354, Haffner 22, Ruprecht 11, and ESO489 SC01 is interpreted in terms of a warped and flared Galactic disk, without resort to an external entity such as the popular Monoceros or Canis Major overdensities. Except for NGC 2215, the clusters are poorly or unstudied previously. The data generate basic parameters for eachcluster, including the distribution of stars along the line of sight.We use star counts and photometric analysis, without recourse to Galactic-model-based predictions or interpretations, and confirms earlier results for NGC 2215 and NGC 2354. ESO489 SC01 is not a real cluster, while Haffner 22 is an overlooked cluster aged 2.5 Gyr. Conclusions for Ruprecht 11 are preliminary, evidence for a cluster being marginal. Fields surrounding the clusters show signaturesof young and intermediate-age stellar populations. The young population background to NGC 2354 and Ruprecht 11 lies 8?9 kpc from the Sun and 1 kpc below the formal Galactic plane, tracing a portion of the Norma-Cygnus arm, challenging Galactic models that adopt a sharp cut-off of the disk 1214 kpc from the Galactic center. The old population is metal poor with an age of 2 3 Gyr, resembling star clusters like Tombaugh 2 or NGC 2158. It has a large color spread and is difficult to locate precisely. Young and old populations followa pattern that depends critically on the vertical location of the thin and/or thick disk, and whether or not a particular line of sight intersects one, both, or none.Fil: Carraro, Giovanni. European Southern Observatory; ChileFil: Seleznev, Anton F.. Ural Federal University; RusiaFil: Baume, Gustavo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; ArgentinaFil: Turner D.. Saint Mary’s University; CanadáWiley Blackwell Publishing, Inc2016-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/35482Carraro, Giovanni; Seleznev, Anton F.; Baume, Gustavo Luis; Turner D.; The complex stellar populations in the background of open clusters in the third Galactic quadrant; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 455; 2-2016; 4031-40460035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://adsabs.harvard.edu/abs/2016MNRAS.455.4031Cinfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stv2663info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/455/4/4031/1276218?redirectedFrom=fulltextinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:14:58Zoai:ri.conicet.gov.ar:11336/35482instacron: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 11:14:59.38CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The complex stellar populations in the background of open clusters in the third Galactic quadrant
title The complex stellar populations in the background of open clusters in the third Galactic quadrant
spellingShingle The complex stellar populations in the background of open clusters in the third Galactic quadrant
Carraro, Giovanni
Structure of galaxy
Galaxy disks
Galaxy
Open clusters
Associations (estrellas)
title_short The complex stellar populations in the background of open clusters in the third Galactic quadrant
title_full The complex stellar populations in the background of open clusters in the third Galactic quadrant
title_fullStr The complex stellar populations in the background of open clusters in the third Galactic quadrant
title_full_unstemmed The complex stellar populations in the background of open clusters in the third Galactic quadrant
title_sort The complex stellar populations in the background of open clusters in the third Galactic quadrant
dc.creator.none.fl_str_mv Carraro, Giovanni
Seleznev, Anton F.
Baume, Gustavo Luis
Turner D.
author Carraro, Giovanni
author_facet Carraro, Giovanni
Seleznev, Anton F.
Baume, Gustavo Luis
Turner D.
author_role author
author2 Seleznev, Anton F.
Baume, Gustavo Luis
Turner D.
author2_role author
author
author
dc.subject.none.fl_str_mv Structure of galaxy
Galaxy disks
Galaxy
Open clusters
Associations (estrellas)
topic Structure of galaxy
Galaxy disks
Galaxy
Open clusters
Associations (estrellas)
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Multi-color photometry of the stellar populations in five fields in the third Galactic quadrant centred on the clusters NGC 2215, NGC 2354, Haffner 22, Ruprecht 11, and ESO489 SC01 is interpreted in terms of a warped and flared Galactic disk, without resort to an external entity such as the popular Monoceros or Canis Major overdensities. Except for NGC 2215, the clusters are poorly or unstudied previously. The data generate basic parameters for eachcluster, including the distribution of stars along the line of sight.We use star counts and photometric analysis, without recourse to Galactic-model-based predictions or interpretations, and confirms earlier results for NGC 2215 and NGC 2354. ESO489 SC01 is not a real cluster, while Haffner 22 is an overlooked cluster aged 2.5 Gyr. Conclusions for Ruprecht 11 are preliminary, evidence for a cluster being marginal. Fields surrounding the clusters show signaturesof young and intermediate-age stellar populations. The young population background to NGC 2354 and Ruprecht 11 lies 8?9 kpc from the Sun and 1 kpc below the formal Galactic plane, tracing a portion of the Norma-Cygnus arm, challenging Galactic models that adopt a sharp cut-off of the disk 1214 kpc from the Galactic center. The old population is metal poor with an age of 2 3 Gyr, resembling star clusters like Tombaugh 2 or NGC 2158. It has a large color spread and is difficult to locate precisely. Young and old populations followa pattern that depends critically on the vertical location of the thin and/or thick disk, and whether or not a particular line of sight intersects one, both, or none.
Fil: Carraro, Giovanni. European Southern Observatory; Chile
Fil: Seleznev, Anton F.. Ural Federal University; Rusia
Fil: Baume, Gustavo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; Argentina
Fil: Turner D.. Saint Mary’s University; Canadá
description Multi-color photometry of the stellar populations in five fields in the third Galactic quadrant centred on the clusters NGC 2215, NGC 2354, Haffner 22, Ruprecht 11, and ESO489 SC01 is interpreted in terms of a warped and flared Galactic disk, without resort to an external entity such as the popular Monoceros or Canis Major overdensities. Except for NGC 2215, the clusters are poorly or unstudied previously. The data generate basic parameters for eachcluster, including the distribution of stars along the line of sight.We use star counts and photometric analysis, without recourse to Galactic-model-based predictions or interpretations, and confirms earlier results for NGC 2215 and NGC 2354. ESO489 SC01 is not a real cluster, while Haffner 22 is an overlooked cluster aged 2.5 Gyr. Conclusions for Ruprecht 11 are preliminary, evidence for a cluster being marginal. Fields surrounding the clusters show signaturesof young and intermediate-age stellar populations. The young population background to NGC 2354 and Ruprecht 11 lies 8?9 kpc from the Sun and 1 kpc below the formal Galactic plane, tracing a portion of the Norma-Cygnus arm, challenging Galactic models that adopt a sharp cut-off of the disk 1214 kpc from the Galactic center. The old population is metal poor with an age of 2 3 Gyr, resembling star clusters like Tombaugh 2 or NGC 2158. It has a large color spread and is difficult to locate precisely. Young and old populations followa pattern that depends critically on the vertical location of the thin and/or thick disk, and whether or not a particular line of sight intersects one, both, or none.
publishDate 2016
dc.date.none.fl_str_mv 2016-02
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/11336/35482
Carraro, Giovanni; Seleznev, Anton F.; Baume, Gustavo Luis; Turner D.; The complex stellar populations in the background of open clusters in the third Galactic quadrant; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 455; 2-2016; 4031-4046
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/35482
identifier_str_mv Carraro, Giovanni; Seleznev, Anton F.; Baume, Gustavo Luis; Turner D.; The complex stellar populations in the background of open clusters in the third Galactic quadrant; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 455; 2-2016; 4031-4046
0035-8711
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://adsabs.harvard.edu/abs/2016MNRAS.455.4031C
info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stv2663
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/455/4/4031/1276218?redirectedFrom=fulltext
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 Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
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
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score 12.982451

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