Artículo
CCD UBVI photometry and polarimetry in the open cluster Trumpler 21
Fecha de publicación:
04/2001
Editorial:
Universidad Nacional Autónoma de México. Instituto de Astronomía
Revista:
Revista Mexicana de Astronomía y Astrofísica
ISSN:
0185-1101
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
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.
Palabras clave:
Open Clusters
,
Trumpler 21 (Estrellas)
,
Photometry
,
Polarimetry
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IALP)
Articulos de INST.DE ASTROFISICA LA PLATA
Articulos de INST.DE ASTROFISICA LA PLATA
Citación
Giorgi, Edgard Ervar Salvador; Baume, Gustavo Luis; Vazquez, Ruben Angel; Feinstein, Alejandro; CCD UBVI photometry and polarimetry in the open cluster Trumpler 21; Universidad Nacional Autónoma de México. Instituto de Astronomía; Revista Mexicana de Astronomía y Astrofísica; 37; 4-2001; 15-33
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