CCD UBVI photometry and polarimetry in the open cluster Trumpler 21

CCD UBVI photometry was carried out in the field of the open cluster Trumpler 21. Our data locate the cluster at a distance of 1380 pc in a low absorption zone with E(B-V) = 0.25. The age of the cluster is estimated to be 25-30 × 106 yr based on the superposition of isochrones computed with mass los...

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Detalles Bibliográficos
Autores principales: Giorgi, Edgard Ervar Salvador, Baume, Gustavo Luis, Vázquez, Rubén Ángel, Feinstein, Alejandro
Formato: Articulo
Lenguaje:Inglés
Publicado: 2001
Materias:
Astronomía
Open clusters
Trumpler 21 (estrellas)
Photometry
Polarimetry
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/93798
http://adsabs.harvard.edu/abs/2001RMxAA..37...15G
http://articles.adsabs.harvard.edu/full/2001RMxAA..37...15G
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-93798
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Astronomía
Open clusters
Trumpler 21 (estrellas)
Photometry
Polarimetry
spellingShingle Astronomía
Open clusters
Trumpler 21 (estrellas)
Photometry
Polarimetry
Giorgi, Edgard Ervar Salvador
Baume, Gustavo Luis
Vázquez, Rubén Ángel
Feinstein, Alejandro
CCD UBVI photometry and polarimetry in the open cluster Trumpler 21
topic_facet Astronomía
Open clusters
Trumpler 21 (estrellas)
Photometry
Polarimetry
description CCD UBVI photometry was carried out in the field of the open cluster Trumpler 21. Our data locate the cluster at a distance of 1380 pc in a low absorption zone with E(B-V) = 0.25. The age of the cluster is estimated to be 25-30 × 106 yr based on the superposition of isochrones computed with mass loss and overshooting. The cluster mass spectrum has a slope of 1.44 similar to the typical value 1.35 for field stars. UBVRI polarimetry of its brightest members led us to the finding that diffuse interstellar material is responsible for both polarization percentage and its direction.
format Articulo
Articulo
author Giorgi, Edgard Ervar Salvador
Baume, Gustavo Luis
Vázquez, Rubén Ángel
Feinstein, Alejandro
author_facet Giorgi, Edgard Ervar Salvador
Baume, Gustavo Luis
Vázquez, Rubén Ángel
Feinstein, Alejandro
author_sort Giorgi, Edgard Ervar Salvador
title CCD UBVI photometry and polarimetry in the open cluster Trumpler 21
title_short CCD UBVI photometry and polarimetry in the open cluster Trumpler 21
title_full CCD UBVI photometry and polarimetry in the open cluster Trumpler 21
title_fullStr CCD UBVI photometry and polarimetry in the open cluster Trumpler 21
title_full_unstemmed CCD UBVI photometry and polarimetry in the open cluster Trumpler 21
title_sort ccd ubvi photometry and polarimetry in the open cluster trumpler 21
publishDate 2001
url http://sedici.unlp.edu.ar/handle/10915/93798
http://adsabs.harvard.edu/abs/2001RMxAA..37...15G
http://articles.adsabs.harvard.edu/full/2001RMxAA..37...15G
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