The young open cluster Markarian 50
- Autores
- Baume, Gustavo; Vázquez, Rubén Ángel; 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 (V o - M v = 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.
Facultad de Ciencias Astronómicas y Geofísicas - Materia
-
Ciencias Astronómicas
Open clusters and associations: individual: Markarian 50
Stars: imaging
Stars: individual: HD 219460
Stars: individual: WR 157
Stars: luminosity function, mass function
Stars: Wolf-Rayet - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/83384
Ver los metadatos del registro completo
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The young open cluster Markarian 50Baume, GustavoVázquez, Rubén ÁngelCarraro, GiovanniCiencias AstronómicasOpen clusters and associations: individual: Markarian 50Stars: imagingStars: individual: HD 219460Stars: individual: WR 157Stars: luminosity function, mass functionStars: Wolf-RayetWe 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 (V o - M v = 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.Facultad de Ciencias Astronómicas y Geofísicas2004info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf475-484http://sedici.unlp.edu.ar/handle/10915/83384enginfo:eu-repo/semantics/altIdentifier/issn/0035-8711info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2004.08337.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:UNLP2025-09-29T11:15:50Zoai:sedici.unlp.edu.ar:10915/83384Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:15:50.727SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| 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 Ciencias Astronómicas Open clusters and associations: individual: Markarian 50 Stars: imaging Stars: individual: HD 219460 Stars: individual: WR 157 Stars: luminosity function, mass function Stars: Wolf-Rayet |
| 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 Vázquez, Rubén Ángel Carraro, Giovanni |
| author |
Baume, Gustavo |
| author_facet |
Baume, Gustavo Vázquez, Rubén Ángel Carraro, Giovanni |
| author_role |
author |
| author2 |
Vázquez, Rubén Ángel Carraro, Giovanni |
| author2_role |
author author |
| dc.subject.none.fl_str_mv |
Ciencias Astronómicas Open clusters and associations: individual: Markarian 50 Stars: imaging Stars: individual: HD 219460 Stars: individual: WR 157 Stars: luminosity function, mass function Stars: Wolf-Rayet |
| topic |
Ciencias Astronómicas Open clusters and associations: individual: Markarian 50 Stars: imaging Stars: individual: HD 219460 Stars: individual: WR 157 Stars: luminosity function, mass function Stars: Wolf-Rayet |
| 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 (V o - M v = 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. Facultad de Ciencias Astronómicas y Geofísicas |
| 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 (V o - M v = 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 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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publishedVersion |
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http://sedici.unlp.edu.ar/handle/10915/83384 |
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http://sedici.unlp.edu.ar/handle/10915/83384 |
| 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.1365-2966.2004.08337.x |
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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) |
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openAccess |
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http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
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application/pdf 475-484 |
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