Young star clusters and the structure of the second Galactic quadrant II

Autores
Molina Lera, José Alejo; Baume, Gustavo Luis; Gamen, Roberto Claudio
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Galactic spiral arms are traced using young objects as giant molecular clouds, H II regions, OB stars, or young open/embedded clusters. To improve the knowledge of the Galactic structure in the second quadrant we selected, from more than 200 open clusters covered by the SDSS, a sample of 10 young stellar clusters to conduct a spectrophotometric study. Photometric data were provided by SDSS and APASS in the optic bands and by 2MASS and WISE in the infrared. Spectroscopic information was obtained from observations acquired with GMOS/GEMINI complemented with data from the literature. For six of the 10 clusters, distances were also obtained with our astrometric Gaia data analysis. To perform all tasks we used a suite of tools developed by us. Our results show that these open clusters are distributed along three spiral arms, covering distances from 1.8 to 8.0 kpc. We confirm, using our novel spectroscopic data, our previews photometric estimations regarding the Galactic location of the cluster Teutsch 45. We found that it is located beyond the ?Outer Arm? and probably belong to the more distant ?New Arm? extending its trace almost to the anticentre. Hence, it was possible to get a better picture of the structure of the outer regions of the Galaxy. For clusters with pre-main-sequence populations we also found traces of coeval star formation processes. Regarding spectroscopic data and most massive members of the clusters, we discovered seven B-type stars, all earlier than B4 and we also confirmed the spectral classification of one O8-8.5 type star.
Fil: Molina Lera, José Alejo. 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: 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: Gamen, Roberto Claudio. 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
Materia
GALAXY: STRUCTURE
OPEN CLUSTERS AND ASSOCIATIONS: GENERAL
STARS: EARLY-TYPE
STARS: FORMATION
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:11336/137847
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/137847
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Young star clusters and the structure of the second Galactic quadrant IIMolina Lera, José AlejoBaume, Gustavo LuisGamen, Roberto ClaudioGALAXY: STRUCTUREOPEN CLUSTERS AND ASSOCIATIONS: GENERALSTARS: EARLY-TYPESTARS: FORMATIONhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Galactic spiral arms are traced using young objects as giant molecular clouds, H II regions, OB stars, or young open/embedded clusters. To improve the knowledge of the Galactic structure in the second quadrant we selected, from more than 200 open clusters covered by the SDSS, a sample of 10 young stellar clusters to conduct a spectrophotometric study. Photometric data were provided by SDSS and APASS in the optic bands and by 2MASS and WISE in the infrared. Spectroscopic information was obtained from observations acquired with GMOS/GEMINI complemented with data from the literature. For six of the 10 clusters, distances were also obtained with our astrometric Gaia data analysis. To perform all tasks we used a suite of tools developed by us. Our results show that these open clusters are distributed along three spiral arms, covering distances from 1.8 to 8.0 kpc. We confirm, using our novel spectroscopic data, our previews photometric estimations regarding the Galactic location of the cluster Teutsch 45. We found that it is located beyond the ?Outer Arm? and probably belong to the more distant ?New Arm? extending its trace almost to the anticentre. Hence, it was possible to get a better picture of the structure of the outer regions of the Galaxy. For clusters with pre-main-sequence populations we also found traces of coeval star formation processes. Regarding spectroscopic data and most massive members of the clusters, we discovered seven B-type stars, all earlier than B4 and we also confirmed the spectral classification of one O8-8.5 type star.Fil: Molina Lera, José Alejo. 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: 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: Gamen, Roberto Claudio. 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; ArgentinaWiley Blackwell Publishing, Inc2019-09info: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/11336/137847Molina Lera, José Alejo; Baume, Gustavo Luis; Gamen, Roberto Claudio; Young star clusters and the structure of the second Galactic quadrant II; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 488; 2; 9-2019; 2158-21740035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/488/2/2158/5523133info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stz1710info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:40:04Zoai:ri.conicet.gov.ar:11336/137847instacron: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 09:40:04.707CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Young star clusters and the structure of the second Galactic quadrant II
title Young star clusters and the structure of the second Galactic quadrant II
spellingShingle Young star clusters and the structure of the second Galactic quadrant II
Molina Lera, José Alejo
GALAXY: STRUCTURE
OPEN CLUSTERS AND ASSOCIATIONS: GENERAL
STARS: EARLY-TYPE
STARS: FORMATION
title_short Young star clusters and the structure of the second Galactic quadrant II
title_full Young star clusters and the structure of the second Galactic quadrant II
title_fullStr Young star clusters and the structure of the second Galactic quadrant II
title_full_unstemmed Young star clusters and the structure of the second Galactic quadrant II
title_sort Young star clusters and the structure of the second Galactic quadrant II
dc.creator.none.fl_str_mv Molina Lera, José Alejo
Baume, Gustavo Luis
Gamen, Roberto Claudio
author Molina Lera, José Alejo
author_facet Molina Lera, José Alejo
Baume, Gustavo Luis
Gamen, Roberto Claudio
author_role author
author2 Baume, Gustavo Luis
Gamen, Roberto Claudio
author2_role author
author
dc.subject.none.fl_str_mv GALAXY: STRUCTURE
OPEN CLUSTERS AND ASSOCIATIONS: GENERAL
STARS: EARLY-TYPE
STARS: FORMATION
topic GALAXY: STRUCTURE
OPEN CLUSTERS AND ASSOCIATIONS: GENERAL
STARS: EARLY-TYPE
STARS: FORMATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Galactic spiral arms are traced using young objects as giant molecular clouds, H II regions, OB stars, or young open/embedded clusters. To improve the knowledge of the Galactic structure in the second quadrant we selected, from more than 200 open clusters covered by the SDSS, a sample of 10 young stellar clusters to conduct a spectrophotometric study. Photometric data were provided by SDSS and APASS in the optic bands and by 2MASS and WISE in the infrared. Spectroscopic information was obtained from observations acquired with GMOS/GEMINI complemented with data from the literature. For six of the 10 clusters, distances were also obtained with our astrometric Gaia data analysis. To perform all tasks we used a suite of tools developed by us. Our results show that these open clusters are distributed along three spiral arms, covering distances from 1.8 to 8.0 kpc. We confirm, using our novel spectroscopic data, our previews photometric estimations regarding the Galactic location of the cluster Teutsch 45. We found that it is located beyond the ?Outer Arm? and probably belong to the more distant ?New Arm? extending its trace almost to the anticentre. Hence, it was possible to get a better picture of the structure of the outer regions of the Galaxy. For clusters with pre-main-sequence populations we also found traces of coeval star formation processes. Regarding spectroscopic data and most massive members of the clusters, we discovered seven B-type stars, all earlier than B4 and we also confirmed the spectral classification of one O8-8.5 type star.
Fil: Molina Lera, José Alejo. 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: 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: Gamen, Roberto Claudio. 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
description Galactic spiral arms are traced using young objects as giant molecular clouds, H II regions, OB stars, or young open/embedded clusters. To improve the knowledge of the Galactic structure in the second quadrant we selected, from more than 200 open clusters covered by the SDSS, a sample of 10 young stellar clusters to conduct a spectrophotometric study. Photometric data were provided by SDSS and APASS in the optic bands and by 2MASS and WISE in the infrared. Spectroscopic information was obtained from observations acquired with GMOS/GEMINI complemented with data from the literature. For six of the 10 clusters, distances were also obtained with our astrometric Gaia data analysis. To perform all tasks we used a suite of tools developed by us. Our results show that these open clusters are distributed along three spiral arms, covering distances from 1.8 to 8.0 kpc. We confirm, using our novel spectroscopic data, our previews photometric estimations regarding the Galactic location of the cluster Teutsch 45. We found that it is located beyond the ?Outer Arm? and probably belong to the more distant ?New Arm? extending its trace almost to the anticentre. Hence, it was possible to get a better picture of the structure of the outer regions of the Galaxy. For clusters with pre-main-sequence populations we also found traces of coeval star formation processes. Regarding spectroscopic data and most massive members of the clusters, we discovered seven B-type stars, all earlier than B4 and we also confirmed the spectral classification of one O8-8.5 type star.
publishDate 2019
dc.date.none.fl_str_mv 2019-09
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/11336/137847
Molina Lera, José Alejo; Baume, Gustavo Luis; Gamen, Roberto Claudio; Young star clusters and the structure of the second Galactic quadrant II; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 488; 2; 9-2019; 2158-2174
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/137847
identifier_str_mv Molina Lera, José Alejo; Baume, Gustavo Luis; Gamen, Roberto Claudio; Young star clusters and the structure of the second Galactic quadrant II; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 488; 2; 9-2019; 2158-2174
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/https://academic.oup.com/mnras/article/488/2/2158/5523133
info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stz1710
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 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 13.070432

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