LYNGÅ 1, a small open cluster containing a red-supergiant member

Autores
Vázquez, Rubén Ángel; Giorgi, Edgard Ervar Salvador; Brusasco, M. A.; Baume, Gustavo Luis; Solivella, Gladys Rebeca
Año de publicación
2003
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present CCD UBVRI (Cousins system) photometric observations complemented with spectroscopic and polarimetric observations that were carried out in the open cluster Lyngå 1. Our data indicate that the cluster reddening is EB−V = 0.45 ± 0.03, the ratio AV/EB−V = R suggests that the extinction law may be slightly anomalous (R ≈ 3.5) and that the cluster distance modulus is V0 − MV = 11.40 ± 0.2. The age of Lyngå 1 is bet ween 100 and 125 Myr according to a fitting of theoretical iso chrones, and the slope of its mass spectrum is x ≈ 1.7. The brightest red star in the field is a cluster member of spectral type K2 II–Ib.
Presentamos observaciones fotométricas CCD UBVRI (sistema de Cousins) complementadas con observaciones espectroscópicas y polarimétricas en el cúmulo abierto Lyngå 1. Nuestros datos indican que el enrojecimiento del cúmulo es EB−V = 0.45 ± 0.03, que la razón AV/EB−V = R sugiere que la ley de extinción puede ser ligeramente anómala (R ≈ 3.5) y que su módulo de distancia es V0 − MV = 11.40 ± 0.2. La edad de Lyngå 1 está comprendida entre 100 y 125 millones de años de acuerdo a un ajuste de isocronas teóricas y la pendiente del espectro de masas es x ≈ 1.7. La estrella roja más brillante del campo es un miembro de este cúmulo, cuyo tipo espectral es K2 II–Ib.
Facultad de Ciencias Astronómicas y Geofísicas
Instituto de Astrofísica de La Plata
Materia
Astronomía
open clusters and associations: individual (lLyngå 1)
stars: mass function, spectral classification
stars: polarization
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:10915/93857
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/93857
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling LYNGÅ 1, a small open cluster containing a red-supergiant memberVázquez, Rubén ÁngelGiorgi, Edgard Ervar SalvadorBrusasco, M. A.Baume, Gustavo LuisSolivella, Gladys RebecaAstronomíaopen clusters and associations: individual (lLyngå 1)stars: mass function, spectral classificationstars: polarizationWe present CCD <i>UBVRI</i> (Cousins system) photometric observations complemented with spectroscopic and polarimetric observations that were carried out in the open cluster Lyngå 1. Our data indicate that the cluster reddening is E<sub>B−V</sub> = 0.45 ± 0.03, the ratio A<sub>V</sub>/E<sub>B−V</sub> = R suggests that the extinction law may be slightly anomalous (R ≈ 3.5) and that the cluster distance modulus is V<sub>0</sub> − M<sub>V</sub> = 11.40 ± 0.2. The age of Lyngå 1 is bet ween 100 and 125 Myr according to a fitting of theoretical iso chrones, and the slope of its mass spectrum is x ≈ 1.7. The brightest red star in the field is a cluster member of spectral type K2 II–Ib.Presentamos observaciones fotométricas CCD <i>UBVRI</i> (sistema de Cousins) complementadas con observaciones espectroscópicas y polarimétricas en el cúmulo abierto Lyngå 1. Nuestros datos indican que el enrojecimiento del cúmulo es E<sub>B−V</sub> = 0.45 ± 0.03, que la razón A<sub>V</sub>/E<sub>B−V</sub> = R sugiere que la ley de extinción puede ser ligeramente anómala (R ≈ 3.5) y que su módulo de distancia es V<sub>0</sub> − M<sub>V</sub> = 11.40 ± 0.2. La edad de Lyngå 1 está comprendida entre 100 y 125 millones de años de acuerdo a un ajuste de isocronas teóricas y la pendiente del espectro de masas es x ≈ 1.7. La estrella roja más brillante del campo es un miembro de este cúmulo, cuyo tipo espectral es K2 II–Ib.Facultad de Ciencias Astronómicas y GeofísicasInstituto de Astrofísica de La Plata2003-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf89-105http://sedici.unlp.edu.ar/handle/10915/93857enginfo:eu-repo/semantics/altIdentifier/url/http://www.astrosmo.unam.mx/rmaa/RMxAA..39-1/PDF/RMxAA..39-1_vazquez.pdfinfo:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/handle/11336/82453info:eu-repo/semantics/altIdentifier/issn/0185-1101info:eu-repo/semantics/altIdentifier/hdl/11336/82453info: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:UNLP2025-10-22T17:00:16Zoai:sedici.unlp.edu.ar:10915/93857Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 17:00:16.747SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv LYNGÅ 1, a small open cluster containing a red-supergiant member
title LYNGÅ 1, a small open cluster containing a red-supergiant member
spellingShingle LYNGÅ 1, a small open cluster containing a red-supergiant member
Vázquez, Rubén Ángel
Astronomía
open clusters and associations: individual (lLyngå 1)
stars: mass function, spectral classification
stars: polarization
title_short LYNGÅ 1, a small open cluster containing a red-supergiant member
title_full LYNGÅ 1, a small open cluster containing a red-supergiant member
title_fullStr LYNGÅ 1, a small open cluster containing a red-supergiant member
title_full_unstemmed LYNGÅ 1, a small open cluster containing a red-supergiant member
title_sort LYNGÅ 1, a small open cluster containing a red-supergiant member
dc.creator.none.fl_str_mv Vázquez, Rubén Ángel
Giorgi, Edgard Ervar Salvador
Brusasco, M. A.
Baume, Gustavo Luis
Solivella, Gladys Rebeca
author Vázquez, Rubén Ángel
author_facet Vázquez, Rubén Ángel
Giorgi, Edgard Ervar Salvador
Brusasco, M. A.
Baume, Gustavo Luis
Solivella, Gladys Rebeca
author_role author
author2 Giorgi, Edgard Ervar Salvador
Brusasco, M. A.
Baume, Gustavo Luis
Solivella, Gladys Rebeca
author2_role author
author
author
author
dc.subject.none.fl_str_mv Astronomía
open clusters and associations: individual (lLyngå 1)
stars: mass function, spectral classification
stars: polarization
topic Astronomía
open clusters and associations: individual (lLyngå 1)
stars: mass function, spectral classification
stars: polarization
dc.description.none.fl_txt_mv We present CCD <i>UBVRI</i> (Cousins system) photometric observations complemented with spectroscopic and polarimetric observations that were carried out in the open cluster Lyngå 1. Our data indicate that the cluster reddening is E<sub>B−V</sub> = 0.45 ± 0.03, the ratio A<sub>V</sub>/E<sub>B−V</sub> = R suggests that the extinction law may be slightly anomalous (R ≈ 3.5) and that the cluster distance modulus is V<sub>0</sub> − M<sub>V</sub> = 11.40 ± 0.2. The age of Lyngå 1 is bet ween 100 and 125 Myr according to a fitting of theoretical iso chrones, and the slope of its mass spectrum is x ≈ 1.7. The brightest red star in the field is a cluster member of spectral type K2 II–Ib.
Presentamos observaciones fotométricas CCD <i>UBVRI</i> (sistema de Cousins) complementadas con observaciones espectroscópicas y polarimétricas en el cúmulo abierto Lyngå 1. Nuestros datos indican que el enrojecimiento del cúmulo es E<sub>B−V</sub> = 0.45 ± 0.03, que la razón A<sub>V</sub>/E<sub>B−V</sub> = R sugiere que la ley de extinción puede ser ligeramente anómala (R ≈ 3.5) y que su módulo de distancia es V<sub>0</sub> − M<sub>V</sub> = 11.40 ± 0.2. La edad de Lyngå 1 está comprendida entre 100 y 125 millones de años de acuerdo a un ajuste de isocronas teóricas y la pendiente del espectro de masas es x ≈ 1.7. La estrella roja más brillante del campo es un miembro de este cúmulo, cuyo tipo espectral es K2 II–Ib.
Facultad de Ciencias Astronómicas y Geofísicas
Instituto de Astrofísica de La Plata
description We present CCD <i>UBVRI</i> (Cousins system) photometric observations complemented with spectroscopic and polarimetric observations that were carried out in the open cluster Lyngå 1. Our data indicate that the cluster reddening is E<sub>B−V</sub> = 0.45 ± 0.03, the ratio A<sub>V</sub>/E<sub>B−V</sub> = R suggests that the extinction law may be slightly anomalous (R ≈ 3.5) and that the cluster distance modulus is V<sub>0</sub> − M<sub>V</sub> = 11.40 ± 0.2. The age of Lyngå 1 is bet ween 100 and 125 Myr according to a fitting of theoretical iso chrones, and the slope of its mass spectrum is x ≈ 1.7. The brightest red star in the field is a cluster member of spectral type K2 II–Ib.
publishDate 2003
dc.date.none.fl_str_mv 2003-03
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/10915/93857
url http://sedici.unlp.edu.ar/handle/10915/93857
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.astrosmo.unam.mx/rmaa/RMxAA..39-1/PDF/RMxAA..39-1_vazquez.pdf
info:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/handle/11336/82453
info:eu-repo/semantics/altIdentifier/issn/0185-1101
info:eu-repo/semantics/altIdentifier/hdl/11336/82453
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
89-105
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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