The open cluster Havlen-Moffat No. 1 revisited
- Autores
- Vázquez, Rubén Ángel; Baume, Gustavo
- Año de publicación
- 2001
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- A deep CCD UBVRI photometric survey combined with UBVRI polarimetric observations of 21 bright stars was carried out in the region of the open cluster Havlen-Moffat No. 1. Our data reveal that the extinction law in this cluster is variable and that six cluster stars show very high polarisation values (>4%), probably because of the presence of a nearby small dust cloud. The cluster is at a distance of d = 3300 pc, it is 2-4 Myr old and the initial mass function of its most massive stars (M > 3 M⊙) has a flat slope of x ≈ 0.7. As an additional result, it was possible to reconcile the absolute magnitudes of the two WN7-type members using the R-values valid in the regions where they are located.
Facultad de Ciencias Astronómicas y Geofísicas - Materia
-
Ciencias Astronómicas
Cluster: open
Individual: Havlen-Moffat No. 1
ISM: dust, extinction
Stars: imaging
Stars: luminosity function, mass function - 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:10915/83579
Ver los metadatos del registro completo
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The open cluster Havlen-Moffat No. 1 revisitedVázquez, Rubén ÁngelBaume, GustavoCiencias AstronómicasCluster: openIndividual: Havlen-Moffat No. 1ISM: dust, extinctionStars: imagingStars: luminosity function, mass functionA deep CCD UBVRI photometric survey combined with UBVRI polarimetric observations of 21 bright stars was carried out in the region of the open cluster Havlen-Moffat No. 1. Our data reveal that the extinction law in this cluster is variable and that six cluster stars show very high polarisation values (>4%), probably because of the presence of a nearby small dust cloud. The cluster is at a distance of d = 3300 pc, it is 2-4 Myr old and the initial mass function of its most massive stars (M > 3 M⊙) has a flat slope of x ≈ 0.7. As an additional result, it was possible to reconcile the absolute magnitudes of the two WN7-type members using the R-values valid in the regions where they are located.Facultad de Ciencias Astronómicas y Geofísicas2001-06-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf908-920http://sedici.unlp.edu.ar/handle/10915/83579enginfo:eu-repo/semantics/altIdentifier/issn/0004-6361info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361:20010410info: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:UNLP2025-10-22T16:56:41Zoai:sedici.unlp.edu.ar:10915/83579Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 16:56:42.231SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
The open cluster Havlen-Moffat No. 1 revisited |
| title |
The open cluster Havlen-Moffat No. 1 revisited |
| spellingShingle |
The open cluster Havlen-Moffat No. 1 revisited Vázquez, Rubén Ángel Ciencias Astronómicas Cluster: open Individual: Havlen-Moffat No. 1 ISM: dust, extinction Stars: imaging Stars: luminosity function, mass function |
| title_short |
The open cluster Havlen-Moffat No. 1 revisited |
| title_full |
The open cluster Havlen-Moffat No. 1 revisited |
| title_fullStr |
The open cluster Havlen-Moffat No. 1 revisited |
| title_full_unstemmed |
The open cluster Havlen-Moffat No. 1 revisited |
| title_sort |
The open cluster Havlen-Moffat No. 1 revisited |
| dc.creator.none.fl_str_mv |
Vázquez, Rubén Ángel Baume, Gustavo |
| author |
Vázquez, Rubén Ángel |
| author_facet |
Vázquez, Rubén Ángel Baume, Gustavo |
| author_role |
author |
| author2 |
Baume, Gustavo |
| author2_role |
author |
| dc.subject.none.fl_str_mv |
Ciencias Astronómicas Cluster: open Individual: Havlen-Moffat No. 1 ISM: dust, extinction Stars: imaging Stars: luminosity function, mass function |
| topic |
Ciencias Astronómicas Cluster: open Individual: Havlen-Moffat No. 1 ISM: dust, extinction Stars: imaging Stars: luminosity function, mass function |
| dc.description.none.fl_txt_mv |
A deep CCD UBVRI photometric survey combined with UBVRI polarimetric observations of 21 bright stars was carried out in the region of the open cluster Havlen-Moffat No. 1. Our data reveal that the extinction law in this cluster is variable and that six cluster stars show very high polarisation values (>4%), probably because of the presence of a nearby small dust cloud. The cluster is at a distance of d = 3300 pc, it is 2-4 Myr old and the initial mass function of its most massive stars (M > 3 M⊙) has a flat slope of x ≈ 0.7. As an additional result, it was possible to reconcile the absolute magnitudes of the two WN7-type members using the R-values valid in the regions where they are located. Facultad de Ciencias Astronómicas y Geofísicas |
| description |
A deep CCD UBVRI photometric survey combined with UBVRI polarimetric observations of 21 bright stars was carried out in the region of the open cluster Havlen-Moffat No. 1. Our data reveal that the extinction law in this cluster is variable and that six cluster stars show very high polarisation values (>4%), probably because of the presence of a nearby small dust cloud. The cluster is at a distance of d = 3300 pc, it is 2-4 Myr old and the initial mass function of its most massive stars (M > 3 M⊙) has a flat slope of x ≈ 0.7. As an additional result, it was possible to reconcile the absolute magnitudes of the two WN7-type members using the R-values valid in the regions where they are located. |
| publishDate |
2001 |
| dc.date.none.fl_str_mv |
2001-06-15 |
| 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/10915/83579 |
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http://sedici.unlp.edu.ar/handle/10915/83579 |
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eng |
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eng |
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info:eu-repo/semantics/altIdentifier/issn/0004-6361 info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361:20010410 |
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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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