The young open cluster Markarian 50

Autores
Baume, Gustavo Luis; Vazquez, Ruben Angel; Carraro, Giovanni
Año de publicación
2004
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We report on a deep CCD UBV(RI)C photometric survey in the region of the young open cluster Markarian 50. The new photometric data allow us to extend the cluster membership down to V ≈ 17.5, about 2 mag deeper than any previous investigation. On the basis of these data we derive a distance d = 3460 ± 350 pc (Vo - Mv = 12.7 ± 0.2), which turns out to be only slightly lower than previous estimates. The cluster presents differential reddening, with E(B-V) values ranging from 0.69 to 1.1. The brightest member (HD 219460) is a double star, which we separate photometrically for the first time, providing individual magnitudes and colours for each component. One of them is a Wolf-Rayet (WR) star and, according to evolutionary models, the mass of its progenitor should be greater than ∼20 M⊙. The age obtained for the cluster is 7.5 ± 2 Myr and the mass function for the most massive stars (M > 1 M⊙) presents a slope x ≈ 1.0.
Fil: Baume, Gustavo Luis. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Vazquez, Ruben Angel. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Carraro, Giovanni. Dipartamento Di Astronomia, Universita Di Padova; Italia
Materia
Open clusters
Luminosity function
Mass function
HD 219460 (estrella)
WR 157 (estrella)
Wolf rayet stars
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:11336/38930
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/38930
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The young open cluster Markarian 50Baume, Gustavo LuisVazquez, Ruben AngelCarraro, GiovanniOpen clustersLuminosity functionMass functionHD 219460 (estrella)WR 157 (estrella)Wolf rayet starshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We report on a deep CCD UBV(RI)C photometric survey in the region of the young open cluster Markarian 50. The new photometric data allow us to extend the cluster membership down to V ≈ 17.5, about 2 mag deeper than any previous investigation. On the basis of these data we derive a distance d = 3460 ± 350 pc (Vo - Mv = 12.7 ± 0.2), which turns out to be only slightly lower than previous estimates. The cluster presents differential reddening, with E(B-V) values ranging from 0.69 to 1.1. The brightest member (HD 219460) is a double star, which we separate photometrically for the first time, providing individual magnitudes and colours for each component. One of them is a Wolf-Rayet (WR) star and, according to evolutionary models, the mass of its progenitor should be greater than ∼20 M⊙. The age obtained for the cluster is 7.5 ± 2 Myr and the mass function for the most massive stars (M > 1 M⊙) presents a slope x ≈ 1.0.Fil: Baume, Gustavo Luis. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFil: Vazquez, Ruben Angel. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFil: Carraro, Giovanni. Dipartamento Di Astronomia, Universita Di Padova; ItaliaWiley Blackwell Publishing, Inc2004-12info: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/11336/38930Baume, Gustavo Luis; Vazquez, Ruben Angel; Carraro, Giovanni; The young open cluster Markarian 50; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 355; 2; 12-2004; 475-4840035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2004.08337.xinfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/355/2/475/969985info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:19:28Zoai:ri.conicet.gov.ar:11336/38930instacron: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 11:19:28.291CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The young open cluster Markarian 50
title The young open cluster Markarian 50
spellingShingle The young open cluster Markarian 50
Baume, Gustavo Luis
Open clusters
Luminosity function
Mass function
HD 219460 (estrella)
WR 157 (estrella)
Wolf rayet stars
title_short The young open cluster Markarian 50
title_full The young open cluster Markarian 50
title_fullStr The young open cluster Markarian 50
title_full_unstemmed The young open cluster Markarian 50
title_sort The young open cluster Markarian 50
dc.creator.none.fl_str_mv Baume, Gustavo Luis
Vazquez, Ruben Angel
Carraro, Giovanni
author Baume, Gustavo Luis
author_facet Baume, Gustavo Luis
Vazquez, Ruben Angel
Carraro, Giovanni
author_role author
author2 Vazquez, Ruben Angel
Carraro, Giovanni
author2_role author
author
dc.subject.none.fl_str_mv Open clusters
Luminosity function
Mass function
HD 219460 (estrella)
WR 157 (estrella)
Wolf rayet stars
topic Open clusters
Luminosity function
Mass function
HD 219460 (estrella)
WR 157 (estrella)
Wolf rayet stars
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We report on a deep CCD UBV(RI)C photometric survey in the region of the young open cluster Markarian 50. The new photometric data allow us to extend the cluster membership down to V ≈ 17.5, about 2 mag deeper than any previous investigation. On the basis of these data we derive a distance d = 3460 ± 350 pc (Vo - Mv = 12.7 ± 0.2), which turns out to be only slightly lower than previous estimates. The cluster presents differential reddening, with E(B-V) values ranging from 0.69 to 1.1. The brightest member (HD 219460) is a double star, which we separate photometrically for the first time, providing individual magnitudes and colours for each component. One of them is a Wolf-Rayet (WR) star and, according to evolutionary models, the mass of its progenitor should be greater than ∼20 M⊙. The age obtained for the cluster is 7.5 ± 2 Myr and the mass function for the most massive stars (M > 1 M⊙) presents a slope x ≈ 1.0.
Fil: Baume, Gustavo Luis. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Vazquez, Ruben Angel. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Carraro, Giovanni. Dipartamento Di Astronomia, Universita Di Padova; Italia
description We report on a deep CCD UBV(RI)C photometric survey in the region of the young open cluster Markarian 50. The new photometric data allow us to extend the cluster membership down to V ≈ 17.5, about 2 mag deeper than any previous investigation. On the basis of these data we derive a distance d = 3460 ± 350 pc (Vo - Mv = 12.7 ± 0.2), which turns out to be only slightly lower than previous estimates. The cluster presents differential reddening, with E(B-V) values ranging from 0.69 to 1.1. The brightest member (HD 219460) is a double star, which we separate photometrically for the first time, providing individual magnitudes and colours for each component. One of them is a Wolf-Rayet (WR) star and, according to evolutionary models, the mass of its progenitor should be greater than ∼20 M⊙. The age obtained for the cluster is 7.5 ± 2 Myr and the mass function for the most massive stars (M > 1 M⊙) presents a slope x ≈ 1.0.
publishDate 2004
dc.date.none.fl_str_mv 2004-12
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/11336/38930
Baume, Gustavo Luis; Vazquez, Ruben Angel; Carraro, Giovanni; The young open cluster Markarian 50; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 355; 2; 12-2004; 475-484
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/38930
identifier_str_mv Baume, Gustavo Luis; Vazquez, Ruben Angel; Carraro, Giovanni; The young open cluster Markarian 50; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 355; 2; 12-2004; 475-484
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/doi/10.1111/j.1365-2966.2004.08337.x
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/355/2/475/969985
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 12.982451

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