NGC 2401: A template of the young population of the Norma-Cygnus arm in the Third Galactic Quadrant

Autores
Baume, Gustavo Luis; Moitinho, A.; Vázquez, Rubén Ángel; Solivella, Gladys Rebeca; Carraro, G.; Villanova, S.
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Based on a deep optical CCD [UBV(RI)C] photometric survey and on the Two-Micron All Sky Survey (2MASS) data, we derived the main parameters of the open cluster NGC 2401. We found that this cluster is placed at 6.3 ± 0.5 kpc (Vo - Mv = 14.0 ± 0.2) from the Sun and is 25 Myr old, which allows us to identify NGC 2401 as a member of the young population belonging to the innermost side of the extension of the Norma-Cygnus spiral arm in the Third Galactic Quadrant. A spectroscopic study of the emission star LSS 440 that lies in the cluster area revealed that it is a B0Ve star; however, we could not confirm that it is a cluster member. We also constructed the cluster luminosity function (LF) down to V ∼ 22 and the cluster initial mass function (IMF) for all stars with masses above M ∼ 1-2 M ⊙. It was found that the slope of the cluster IMF is x ≈ 1.8 ± 0.2. The presence of a probable pre-main-sequence (PMS) star population associated with the cluster is weakly revealed.
Facultad de Ciencias Astronómicas y Geofísicas
Instituto de Astrofísica de La Plata
Materia
Ciencias Astronómicas
Galaxy: structure
Open clusters and associations: individual: NGC 2401
Stars: emission-line, Be
Stars: imaging
Stars: individual: LSS 440
Stars: luminosity function, mass function
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/84880
Acceder
id SEDICI_5b0e62fa1e055e9de4dc104860632ded
oai_identifier_str oai:sedici.unlp.edu.ar:10915/84880
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling NGC 2401: A template of the young population of the Norma-Cygnus arm in the Third Galactic QuadrantBaume, Gustavo LuisMoitinho, A.Vázquez, Rubén ÁngelSolivella, Gladys RebecaCarraro, G.Villanova, S.Ciencias AstronómicasGalaxy: structureOpen clusters and associations: individual: NGC 2401Stars: emission-line, BeStars: imagingStars: individual: LSS 440Stars: luminosity function, mass functionBased on a deep optical CCD [<i>UBV(RI)</i><SUB>C</SUB>] photometric survey and on the Two-Micron All Sky Survey (2MASS) data, we derived the main parameters of the open cluster NGC 2401. We found that this cluster is placed at 6.3 ± 0.5 kpc (V<SUB>o</SUB> - M<SUB>v</SUB> = 14.0 ± 0.2) from the Sun and is 25 Myr old, which allows us to identify NGC 2401 as a member of the young population belonging to the innermost side of the extension of the Norma-Cygnus spiral arm in the Third Galactic Quadrant. A spectroscopic study of the emission star LSS 440 that lies in the cluster area revealed that it is a B0Ve star; however, we could not confirm that it is a cluster member. We also constructed the cluster luminosity function (LF) down to V ∼ 22 and the cluster initial mass function (IMF) for all stars with masses above M ∼ 1-2 M ⊙. It was found that the slope of the cluster IMF is x ≈ 1.8 ± 0.2. The presence of a probable pre-main-sequence (PMS) star population associated with the cluster is weakly revealed.Facultad de Ciencias Astronómicas y GeofísicasInstituto de Astrofísica de La Plata2006info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1441-1449http://sedici.unlp.edu.ar/handle/10915/84880enginfo:eu-repo/semantics/altIdentifier/issn/0035-8711info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2006.09985.xinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T16:57:02Zoai:sedici.unlp.edu.ar:10915/84880Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 16:57:03.07SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv NGC 2401: A template of the young population of the Norma-Cygnus arm in the Third Galactic Quadrant
title NGC 2401: A template of the young population of the Norma-Cygnus arm in the Third Galactic Quadrant
spellingShingle NGC 2401: A template of the young population of the Norma-Cygnus arm in the Third Galactic Quadrant
Baume, Gustavo Luis
Ciencias Astronómicas
Galaxy: structure
Open clusters and associations: individual: NGC 2401
Stars: emission-line, Be
Stars: imaging
Stars: individual: LSS 440
Stars: luminosity function, mass function
title_short NGC 2401: A template of the young population of the Norma-Cygnus arm in the Third Galactic Quadrant
title_full NGC 2401: A template of the young population of the Norma-Cygnus arm in the Third Galactic Quadrant
title_fullStr NGC 2401: A template of the young population of the Norma-Cygnus arm in the Third Galactic Quadrant
title_full_unstemmed NGC 2401: A template of the young population of the Norma-Cygnus arm in the Third Galactic Quadrant
title_sort NGC 2401: A template of the young population of the Norma-Cygnus arm in the Third Galactic Quadrant
dc.creator.none.fl_str_mv Baume, Gustavo Luis
Moitinho, A.
Vázquez, Rubén Ángel
Solivella, Gladys Rebeca
Carraro, G.
Villanova, S.
author Baume, Gustavo Luis
author_facet Baume, Gustavo Luis
Moitinho, A.
Vázquez, Rubén Ángel
Solivella, Gladys Rebeca
Carraro, G.
Villanova, S.
author_role author
author2 Moitinho, A.
Vázquez, Rubén Ángel
Solivella, Gladys Rebeca
Carraro, G.
Villanova, S.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Astronómicas
Galaxy: structure
Open clusters and associations: individual: NGC 2401
Stars: emission-line, Be
Stars: imaging
Stars: individual: LSS 440
Stars: luminosity function, mass function
topic Ciencias Astronómicas
Galaxy: structure
Open clusters and associations: individual: NGC 2401
Stars: emission-line, Be
Stars: imaging
Stars: individual: LSS 440
Stars: luminosity function, mass function
dc.description.none.fl_txt_mv Based on a deep optical CCD [<i>UBV(RI)</i><SUB>C</SUB>] photometric survey and on the Two-Micron All Sky Survey (2MASS) data, we derived the main parameters of the open cluster NGC 2401. We found that this cluster is placed at 6.3 ± 0.5 kpc (V<SUB>o</SUB> - M<SUB>v</SUB> = 14.0 ± 0.2) from the Sun and is 25 Myr old, which allows us to identify NGC 2401 as a member of the young population belonging to the innermost side of the extension of the Norma-Cygnus spiral arm in the Third Galactic Quadrant. A spectroscopic study of the emission star LSS 440 that lies in the cluster area revealed that it is a B0Ve star; however, we could not confirm that it is a cluster member. We also constructed the cluster luminosity function (LF) down to V ∼ 22 and the cluster initial mass function (IMF) for all stars with masses above M ∼ 1-2 M ⊙. It was found that the slope of the cluster IMF is x ≈ 1.8 ± 0.2. The presence of a probable pre-main-sequence (PMS) star population associated with the cluster is weakly revealed.
Facultad de Ciencias Astronómicas y Geofísicas
Instituto de Astrofísica de La Plata
description Based on a deep optical CCD [<i>UBV(RI)</i><SUB>C</SUB>] photometric survey and on the Two-Micron All Sky Survey (2MASS) data, we derived the main parameters of the open cluster NGC 2401. We found that this cluster is placed at 6.3 ± 0.5 kpc (V<SUB>o</SUB> - M<SUB>v</SUB> = 14.0 ± 0.2) from the Sun and is 25 Myr old, which allows us to identify NGC 2401 as a member of the young population belonging to the innermost side of the extension of the Norma-Cygnus spiral arm in the Third Galactic Quadrant. A spectroscopic study of the emission star LSS 440 that lies in the cluster area revealed that it is a B0Ve star; however, we could not confirm that it is a cluster member. We also constructed the cluster luminosity function (LF) down to V ∼ 22 and the cluster initial mass function (IMF) for all stars with masses above M ∼ 1-2 M ⊙. It was found that the slope of the cluster IMF is x ≈ 1.8 ± 0.2. The presence of a probable pre-main-sequence (PMS) star population associated with the cluster is weakly revealed.
publishDate 2006
dc.date.none.fl_str_mv 2006
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/84880
url http://sedici.unlp.edu.ar/handle/10915/84880
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0035-8711
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2006.09985.x
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
1441-1449
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 12.982451

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